Sensuous
intuition either pure intuition (space and time) or empirical intuition--of that which im mediately represented in space and time means of sensation as real.
Kant - Critique of Pure Reason
And so w th all the other cate gories.
? ? it,
;
? 8C TRANSCENDENTAL LOGIC.
Deditction OF THE fuh;s Conceftions OF the Undeb- STANDING. '
SECTION II.
Transcendental Deduction of the pure Conceftions of tub Understanding.
? 11.
Of the Possibility of a Conjunction of the manifold repre sentations given by Sense.
Tlie manifold content in our representations can be given in an intuition which is merely sensuous --in other words, is nothing but susceptibility ; and the form of this intuition can exist h priori in our faculty of representation, without being any thing else but the mode in which the subject is affected. But the conjunction (conjunctio) of a manifold in intuition never can be given us by the senses ; it cannot therefore be contained in the pure form of sensuous intuition, for it is a spontaneous act of the faculty of representation. And as we must, to distinguish it from sensibility, entitle this facult) understanding; so all conjunction -- whether conscious or un conscious, be it of the manifold in intuition, sensuous or non- sensuous, or of several conceptions --is an act of the under standing. To this act we shall give the general appellation of synthesis, thereby to indicate, at the same time, that we cannot represent any thing as conjoined in the object without having previously conjoined it ourselves. Of all mental notions, that of conjunction is the only one which cannot be given through objects, but can be originated only by the sub ject itself, because it is an act cf its purely spontaneous activity. The reader will easily enough perceive that the possibility of conjunction must be grounded in the very nature of this act, and that it must be equally valid for all conjunction ; and that analysis, which appears to be its contrary, must, never theless, always presuppose it ; for where the understanding has not previously conjoined, it cannot dissect or analyse, because only a>> conjoined by must that which to be analysed have been given to our faculty of representation.
But the conception of conjunction includes, besides the conception of the manifold and of the synthesis of that of thf
? ? ? it,
is
it,
? TBANSCEKDENTAI. DEDUCTION Ot THJ CATIGOltlEB. 81
unity of it also. Conjunction is the representation of the synthetical unity of the manifold. * This idea of unity, there fore, cannot arise out of that of conjunction ; much rather does that idea, by combining hself with the representation of the manifold, render the conception of conjunction pos sible. This unity, which a priori precedes all conceptions of conjunction, is not the category of unity(? 6); for all the categories are based upon logical functions of judgment, and in these functions we already have conjunction, and consequently unity of given conceptions. It is therefore evident that the category of unity presupposes conjunction. We must therefore look still higher for this unity (as quali tative, ? 8), in that, namely, which contains the ground of the unity of diverse conceptions in judgments, the ground, consequently, of the possibility of the existence of the under standing, even in regard to its logical use.
? 0/ the Originally Synthetical
? 12.
accompany
Unity of Apperception. -^
I think must
otherwise something would be represented in me which could not be thought ; in other words, the representation would either be impossible, or at least be, in relation tc me, nothing. That representation which can be given previously to all thought, is called intuition. All the diversity or manifold content of intuition, has, therefore, a necessary relation to the
The
all my representations, for
I think, in the iI
n which this is found. subject diversity
think, is an act of spontaneity; that is to say, it cannot be regarded as belonging to mere sensibility. I call it pure apperception, in order to distin-
But this representation,
* Whether the representations are in themselves
identical, and conse quently whether one can be thought analytically by means of and through the other, is a question which we need not at present consider. Our cun-
tcioumest of the one, when we speak of the manifold, is always distinguish able from our consciousness of the other ; and it is only respecting the synthesis of this (possible) consciousness that we here treat.
t Apperception simply means consciousness. But it has been considered better to employ this term, not only because Kant saw fit to have another word besides Bevmntteyn, but because the term contcimunem denotes a ttate, apperception an act of the ego; and from this alone the superiority Ot* the latter is apparent. -- 7>.
O
? ? ? 82 TRASaCWTDEKTAL LOGIC.
guish it from empirical ; or primitive apperception, because it is a self-consciIousness which, whilst it gives birth to the >>>
think, must necessarily be capable of accom panying all our representations. It is in all acts of conscious ness one and the same, and unaccompanied by no repre
sentation can exist for me. The unity of this apperception call the transcendental unity of self-consciousness, in order to indicate the possibility of priori cognition arising from it. For the manifold representations which are given in an intui tion would not all of them be my representations, they did not all belong to one self-consciousness, that as my representations (even although am not conscious of them as such), they must conform to the condition under which alone
they can exist together in common self-consciousness, be
cause otherwise they would not all without exception belong
to me. From this primitive conjunction follow many impor tant results.
For example, this universal identity of the apperception of the manifold given in intuition, contains synthesis of repre sentations, and possible only by means of the consciousness of this synthesis. For the empirical consciousness which accompanies difFerent representations in itself fragmentary and disunited, and without relation to the identity of the subject. This relation, then does not exist because accom pany every representation with consciousness, but because join one representation to another, and am conscious of the synthesis of them. Consequently, only because can connect
variety of given representations in one consciousness, possible that can represent to myself the identity of con sciousness in these representations in other words, the ana
lytical unity of apperception possible only under the pre supposition of synthetical unity. * The thought, "These repre-
All general conceptions -- as sucli -- depend, for their existence, on tlie analytical unity of consciousness. For example, when think of red general, thereby think to myself property which (as characteristic mark) can be discovered somewhere, or can be united with other repre sentations consequently, only by means of forethought possible synthetical unity that can think to myself the analytical. represen tation which cogitated as common to different representations, re garded as belonging to such as, besides this common representation, con tain something different; consequently must be previously thought in
synthetical unity with other although only possible representations, before
presentation
? ? ? it
is
I
A is
I
is,
I
is
I ;
it is
a
is
a
a
is
;
a
I
h
I a
I
it, if
*
a
a
is
in itI
I
? DEDUCTION OF THE CATEGOKIES.
tentatiofls given in intuition, belong all of them to me," is
"I unite them in one self-con sciousness, or can at least so unite them ;" and although this
accordingly just the same as,
thought is not itself the consciousness of the synthesis of re
presentations, it presupposes the possibility of it ; that is to say, for the reason alone, that I can comprehend the variety of my representations in one consciousness, do I call them my representations, for otherwise I must have as many- coloured and various a self as are the representations of which I am conscious. Synthetical unity of the manifold in intui tions, as given a priori, is therefore the foundation of the identity of apperception itself, which antecedes it priori all determinate thought. But the conjunction of representations into a conception is not to be found in objects themselves, nor can it be, as it were, borrowed from them and taken up into the understanding by perception, but it is on the contrary an operation of the understanding itself, which is nothing more than the faculty of conjoining a priori, and of bringing the variety of given representations under the unity of apper ception. This principle is the highest in all human cog nition.
This fundamental principle of the necessary unity of apper ception is indeed an identical, and therefore analytical propo sition i but it nevertheless explains the necessity for a synthesis of the manifold given in an intuition, without which the identity of self-consciousness would be incogitable. For the Ego, as a simple representation, presents us with no manifold content ; only in intuition, which is quite different from the representation Ego, can it be given us, and by means of con junction, it is cogitated in one self-consciousness. An under standing, in which all the manifold should be given by means of consciousness itself, would be intuitive ; our understanding can only think, and must look for its intuition to sense. I am, therefore, conscious of my identical self, in relation to all the variety of representations given to me in on intuition,
because I call all of them my representations. In other
I can think in it the analytical unity of consciousness which makes it ? coHCtptai comtmmu. And thus the synthetical unity of apperception is the highest point with which we must connect every operation of the under standing, even the whole of logic, and after it our transcendental philo sophy ; indeed, this faculty U the understanding itself.
? si
? ? ? 84 TKANSCENDENTAL LOGIC.
words, I am conscious myself of a necessary a prtori syn thesis of my representations, which is called the original synthetical unity of apperception, under which rank all the representations presented to me, but that only by means of a synthesis.
The principle of the Synthetical Unity of Apperception is the highest principle of all exercise of the Understanding.
? 13.
The supreme principle of the possibility of all intuition in relation to sensibility was, according to our transcendental esthetic, that all the manifold in intuition be subject to the formal conditions of Space and Time. The supreme prin ciple of the possibility of it in relation to the Understanding is : that all the manifold in it be subject to conditions of the originally synthetical Unity of Apperception. * To the former of these two principles are subject all the various representa tions of Intuition, in so far as they are given to us ; to the latter, in so far as they must be capable of conjunction in one consciousness ; for without this nothing can be thought or cognized, because the given representatioIns would not have
Understanding to speak generally, the faculty of Cog nitions. These consist in the determined relation of given representations to an object. But an object that, in the conception of which the manifold in given intuition
united. Now all union of representations requires unity of
? in common the act of the apperception
fore could not be connected in one self-consciousness.
consciousness in the synthesis of them.
the unity of consciousness alone that constitutes the possibility of representations relating to an object, and therefore of their objective validity, and of their becoming cognitions, and con-
Space and Time, and all portions thereof, are hitutiiom conse quently are, with manifold for their content, single representations. (See the Transcendental 1Eithetic. ) Consequently, they arc not pure conceptions, by means of which the same consciousness found in great number of representations but, on the contrary, they are many representations contained in one, the consciousness of which is, so to speak, compounded. The unity of consciousness nevertheless tyu- thttieal, and therefore primitive. From this peculiar character of con- tcicrasness follow many important consequences. (See 21. )
think ; and there
Consequently,
? ? is ?
a
is
;
is
a
it
is is
a
*
;
is,
? DEDUCTION OF THE CATEGORIES.
85
sequentlv, the possibility of the existence of the understanding itself.
The first pure cognition of understanding, then, upon which is founded all its other exercise, and which is at the same time perfectly independent of all conditions of mere sensuous intuition, is the principle of the original synthetical unity of apperception. Thus the mere form of external sensuous in tuition, namely, space, affords us, per se, no cognition ; it merely contributes the manifold in h priori intuition to a pos sible cognition. But, in order to cognize something in space, (for example, a line,) I must draw and thus produce syn thetically determined conjunction of the given manifold, so that the unity of this act at the same time the unity of con sciousness, (in the conception of line,) and by this means alone an object determinate space) cognized. The syn thetical unity of consciousness therefore, an objective con dition of all cognition, which do not merely require in order to cognize an object, but to which every intuition must neces sarily be subject, in order to become an object for me be cause in any other way, and without this synthesis, the mani fold intuition could not be united in one consciousness.
This proposition as already said, itself analytical, though constitutes the synthetical unity, the condition of all thought for states nothing more than that all my repre sentations in any given intuition, must be subject to the con dition which alone enables me to connect them, as my repre sentation with the identical self, and so to unite them syn thetically in one apperception, by means of the general ex
? think.
But this principle not to be regarded as principle for
every possible understanding, but only for that understanding means of whose pure apperception in the thought am, no manifold content given. The understanding or mind which contained the manifold in intuition, in and through the act itself of its own self-consciousness, in other words, an
understanding by and in the representation of which the objects of the representation should at the same time exist, would not require special act of synthesis of the manifold as the condition of the unity of its consciousness, an act of which the human understanding, which thinks only and can not intuite, has absolute need. But this principle the first
pression,
? ? is
a
(a
is
is,
by
/
; al
I is
in ;
is
a
a
it it
is I
is,
a
it,
? TBAN8CF. ? fl)F. NTAL 1,O010.
principle of all the operations of our understanding, *o that we cannot form the least conception of any other possible un derstanding, either of one such as should be itself intuition, or possess a sensuous intuition, but with forms different from those of space and time.
What Objective Unity of Self-consciousness is. ? 14.
It is by means of the transcendental unity of apperception that all the manifold given in an intuition is united into a conception of the object. On this account it is called ob jective, and must be distinguished from the subjective unity of consciousness, which is a determination of the internal sense, by means of which the said manifold in intuition is given empirically to be so united. Whether I can be empirically conscious of the manifold as co-existent or as successive, de pends upon circumstances, or empirical conditions. Hence the empirical unity of consciousness by means of association of representations, itself relates to a phenomenal world, and is wholly contingent. On the contrary, the pure form of intui tion in time, merely as an intuition,*. which contains a given manifold, is subject to the original unity of consciousness, and that solely by means of the necessary relation of the manifold in intuition to the / think, consequently by means of the pure synthesis of the understanding, which lies h priori at the foundation of all empirical synthesis. The transcendental unity of apperception is alone objectively valid ; the empirical which we do not consider in this essay, and which is merely a unity deduced from the former under given conditions in con-
creto, possesses only subjective validity. One person connects the notion conveyed in a word with one thing, another with another thing ; and the unity of consciousness in that which is empirical, in relation to that which given experi ence, not necessarily and universally valid.
The Logical Form all Judgments consists in the Objective
? Unity Apperception
the Conceptions contained therein.
15.
could never satisfy myself with the definition which gicians (rive of iudgment. is, according to them, the
? ? It
I
a
of
lo
of ?
of
is,
is
by
? DEDFOTIOK OF THE OATieOBIBS.
87
representation of a relation between two conceptions. Ishall not dwell here on the faultiness of this definition, in that it suits only for categorical and not for hypothetical or disjunc tive judgments, these latter containing a relation not of con ceptions but of judgments themselves ; --a blunder from which many evil results have followed. * It is more important for our present purpose to observe, that this definition does not determine in what the said relation consists.
But if I investigate more closely the relation of given cognitions in every judgment, and distinguish as belonging to the understanding, from the relation which produced ac cording to laws of the reproductive imagination, (which has only subjective validity), find that judgment nothing but the mode of bringing given cognitions under the objective unity of apperception. This plain from our use of the term of relation in judgments, in order to distinguish the objective unity of given representations from the subjective unity. For this term indicates the relation of these representations to the original apperception, and also their necessary unity, even though the judgment empirical, therefore contingent, as in the judgment, " All bodies are heavy. " do not mean by this, that these representations do necessarily belong to each other in empirical intuition, but that by means of the necessary unity of apperception they belong to each other in the syn thesis of intuitions, that to say, they belong to each other according to principles of the objective determination of all our representations, in so far as cognition can arise from them, these principles being all deduced from the main principle of the transcendental unity of apperception. In this way alone can there arise from this relation judgment, that rela tion which has objective validity, and perfectly distinct from that relation of the very same representations which
The tedious doctrine of the four syllogistic figures concerns only categorical syllogisms and although nothing more than an artifice by surreptitiously introducing immediate conclusions (consequential imme diate) among the premises of pure syllogism, to give rise to an appearance of more modes of drawing conclusion than that in the first figure, the artifice would not have had much success, had not its authors succeeded
bringing categorical judgments into exclusive respect, as those to which all others must be referred-- doctrine, however, which, according to
utterly false.
? ? ? is
in
*
a
a is
a is isI
f i,
al
;
it is
a is
a
is, a
I
is
is
is it,
? 88 TKAWSCEITOENTAL LOGIC.
has only subjective validity--a relation, to wit, which ii produced according to laws of association. According to these laws, I could only say : " When 1 hold in my hand or carry a body, I feel an impression of weight ;" but I could not say : " It, the body, is heavy ;" for this is tantamount to saying both these representations are conjoined in the ob ject, that without distinction as to the condition of the subject, and do not merely stand together in my perception, however frequently the perceptive act may be repeated.
All Sensuous Intuitions are subject to the Categories, as Conditions under which alone the manifold Content tliem can be united
one Consciousness.
16.
The manifold content given in sensuous intuition comes
necessarily under the original synthetical unity of appercep tion, because thereby alone the unity of intuition possible
13). But that act of the understanding, by which the mani fold content of given representations (whether intuitions or conceptions), brought under one apperception, the logical function of judgments 15). All the manifold therefore, in so far as given in one empirical intuition, determined in relation to one of the logical functions of judgment, means of which brought into union in one consciousness. Now the categories are nothing else than these functions of judg ment, so far as the manifold in given intuition deter mined in relation to them(? 9). Consequently, the manifold
given intuition necessarily subject to the categories of the understanding.
Observation.
? 17.
The manifold in an intuition, which call mine, repre
sented by means of the synthesis of the understanding, ns belonging to the necessary unity of self-consciousness, and this takes place means of the category. * The category
* The proof of this re>>t>> on the represented unity intuition, neans of which an object given, and which always includes in itsell synthesis of the manifold to be intuited, and also the relation of t'l;i
atter to unity of apperception.
? ? ? a
in a
(?
is
is
(?
by
I of
of
by
is
is
by
a
it
is is
is,
it
is
is
is
is
? a
in
? DEDUCTION O? CUE CATlGORtES. 89
indicates accordingly, that the empirical consciousness of a given manifold in an intuition is subject to a pure self-con sciousness H priori, in the same manner as an empirical in tuition is subject to a pure sensuous intuition, which is also h priori. -- In the above proposition, then, lies the beginning of a deduction of the pure conceptions of the understanding. Now, as the categories have their origin in the understanding alone, independently of sensibility, I must in my deduction make abstraction of the mode in which the manifold of an em pirical intuition is given, in order to fix my attention exclu sively on the unity which is brought by the understanding into the intuition by means of the category. In what follows
(? 22), it will be shown from the mode in which the empirical intuition is given in the faculty of sensibility, that the unity which belongs to it is no other than that which the category (according to ? 16) imposes on the manifold in a given intui tion, and thus its (I priori validity in regard to all objects of sense being established, the purpose of our deduction will be fully attained.
But there is one thing in the above demonstration, of which I could not make abstraction, namely, that the manifold to be intuited must be given previously to the synthesis of the un derstanding, and independently of it. How this takes place remains here undetermined. For if I cogitate an understand ing which was itself intuitive (as, for example, a divine un derstanding which should not represent given objects, but by whose representation the objects themselves should be given or produced) -- the categories would possess no signification in relation to such a faculty of cognition. They are merely rules for an understanding, whose whole power consists in thought, that in the act of submitting the synthesis of the manifold which presented to in intuition from very different quarter, to the unity of apperception -- faculty, therefore, which cognizes nothing per >>e, but only connects and arranges the material of cognition, the intuition, namely, which must be presented to means of the object. But to show reasons for this peculiar character of our understandings, that produces unity of apperception priori only by means of categories, and certain kind and number thereof, as
impossible as to explain why we are endowed with precisely so many functions of judgment and no more, or why time and space arc the only forms of our intuition.
? ? ? a
is
it
h
it by
; a
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? 00 TBAHSCXirDXHTAL LOGIC. ? 18.
In Cognition, its Application to Objects of Experience is tit only legitimate use of the Category.
To think an object and to cognize an object are by no means the same thing. In cognition there are two elements :
firstly, the conception, whereby an object is cogitated category) ; and, secondly, the intuition, whereby the object is given. For supposing that to the conception a corresponding intuition could not be given, it would still be a thought as re gards its form, but without any object, and no cognition of anything would be possible by means of inasmuch as, so far as knew, there existed and could exist nothing to which my thought could be applied. Now all intuition possible to us
sensuous consequently, our thought of an object means of pure conception of the understanding, can become cogni tion for us, only in so far as this conception applied to objects of the senses.
Sensuous intuition either pure intuition (space and time) or empirical intuition--of that which im mediately represented in space and time means of sensation as real. Through the determination of pure intuition we ob tain a priori cognitions of objects, as in mathematics, but only as regards their form as phenomena whether there can exist things which must be intuited in this form not thereby established. All mathematical conceptions, therefore, are not per se cognition, except in so far as we presuppose that there exist things, which can only be represented con formably to the form of our pure sensuous intuition. But things in space and time are given, only in so far as they are percep tions (representations accompanied with sensation), therefore only by empirical representation. Consequently the pure con. ceptions of the understanding, even when they are applied to intuitions priori (as in mathematics), produce cognition only in so far as these (and therefore the conceptions of the understanding by means of them,) can be applied to empirical intuitions. Consequently the categories do not, even means of pure intuition, afford us any cognition of things they can only do so in so far as they can be applied to empirical intui tion. That to say, the categories serve only to render em pirical cognition possible. But this what we call experience
(the
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is
is
;
by
by
a
;
is
is
;
is by
is
it,
is aI
? DEDUCTION OF THE CATEGOBIEB. 91
cation to objects of ex* the categories.
The foregoing proposition of the utmost importance, for determines the limits of the exercise of the pure conceptions
of the understanding in regard to objects, just as transcen dental esthetic determined the limits of the exercise of the pure form of our sensuous intuition. Space and time, as conditions of the possibility of the presentation of objects to us, are valid no further than for objects of sense, con sequently, only for experience. Beyond these limits they re present to us nothing, for they belong only to sense, and have no reality apart from it. The pure conceptions of the understanding are free from this limitation, and extend to
objects of intuition in general, be the intuition like or unlike to ours, provided only be sensuous, and not intellectual. But this extension of conceptions beyond the range of our in tuition of no advantage for they are then mere empty con ceptions of objects, as to the possibility or impossibility of the existence of which they furnish us with no means of dis covery. They are mere forms of thought, without objective reality, because we have no intuition to which the synthetical unity of apperception, which alone the categories contain, could be applied, for the purpose of determining an object. Our sensuous and empirical intuition can alone give them significance and meaning. .
If, then, we suppose an object of non-sensuous intuition to be given, wo can in that case represent by all those pre dicates, which are implied in the presupposition that nothing appertaining to sensuous intuition belongs to for example that not extended, or in space that its duration not time that in no change (the effect of the determinations in time)
to be met with, and so on. But no proper knowledge merely indicate what the intuition of the object not, with
out being able to say what contained in for have not shown the possibility of an object to which my pure con
ception of understanding could be applicable, because have not been able to furnish any intuition corresponding to but am only able to say that our intuition not valid for it. But the most important point this, that to something al
? ? ? is is
; it
is
ili
is a
it ;
I it,
if
it,
I is
it
I is
it
is
a
it it is
is
is
it ;
? 92 TRA2fSCEWDEirrAL LO9IC.
this kind not one category can be found applicable. Take, for example, the conception of substance, that is something tLat can exist as subject, but never as mere predicate ; in regard to this conception I am quite ignorant whether there can really be anything to correspond to such a determination of thought, if empirical intuition did not afford me the occa sion for its application. But of this more in the sequel.
? 20.
Of the Application of the Categories to Objects of the Sense* in general.
The pure conceptions of the understanding apply to objects of intuition in general, through the understanding alone, whether the intuition be our own or some other, provided only it be sensuous, but are, for this very reason, mere forms of thought, by means of which alone no determined object can be cognized. The synthesis or conjunction of the manifold in these conceptions relates, we have said, only to the unity of apperception, and is for this reason the ground of the possibility of & priori cognition, in so far as this cognition is dependent on the understanding. This synthesis is, there fore, not merely transcendental, but also purely intellectual. But because a certain form of sensuous intuition exists in the mind 5 priori which rests on the receptivity of the representa tive faculty (sensibility), the understanding, as a spontaneity, is able to determine the internal sense by means of the di versity of given representations, conformably to the synthetical unity of apperception, and thus to cogitate the synthetical unity of the apperception of the manifold of sensuous in tuition a priori, as the condition to which must necessarily
De submitted all objects of human intuition. And in this
nanner the categories as mere forms of thought receive ob
iective reality, that is application to objects which are given to us in intuition, but that only as phenomena, for it is only of phcenomena that we are capable of o priori intuition.
This synthesis of the-manifold of sensuous intuition, which is possible and necessary a priori, may be called figurative (synthesis speciosa), in contra-distinction to that which is co gitated in the mere category in regard to the manifold of an intuition in general, and is called connexion or conjunction of the understanding {synlhcr's intellectualis). Both are trans
? ? ? ? DEDUCTION OF TUB CATEGOBIES. M
cendental, not merely because they themselves precede A prion all experience, but also because they form the basis for the possibility of other cognition a priori.
But the figurative synthesis, when it has relation only to the originally synthetical unity of apperception, that is to the transcendental unity cogitated in the categories, must, to be distinguished from the purely intellectual conjunction, be en titled the transcendental synthesis of imagination. * Imagina tion is the faculty of representing an object even without its presence in intuition. Now, as all our intuition is sensuous, imagination, by reason of the subjective condition under which
alone it can give a corresponding intuition to the conceptions of the understanding, belongs to sensibility. But in so far as the synthesis of the imagination is an act of spontaneity, which is determinative, and not, like sense, merely determinable, and which is consequently able to determine sense a priori, according to its form, conformably to the unity of appercep tion, in so far is the imagination a faculty of determining sen sibility a priori, and ita synthesis of intuitions according to the categories, must be the transcendental synthesis of the imagi
? nation. It is an operation of the understanding on sensibility, and the first application of the understanding to objects of possible intuition, and at the same time the basis for the exer cise of the other functions of that faculty. As figurative, it is distinguished from the merely intellectual synthesis, which is produced by the understanding alone, without the aid of imagination. Now, in so far as imagination is spontaneity, I sometimes call it also the productive imagination, and distin guish it from the reproductive, the synthesis of which is sub ject entirely to empirical laws, those of association, namely, and which, therefore, contributes nothing to the explanation of the possibility of a priori cognition, and for this reason belongs not to transcendental philosophy, but to psychology.
*****
We have now arrived at the proper place for explaining the paradox, which must have struck every one in our exposition of the internal sense (? 0), namely, --how this sense repre sents us to our own consciousness, only as we appear to our selves, not as wc are in ourselves, because, to wit, we uituitc
* Sec note on p. 3-1
? ? ? 94 TKANSCKNUENTAX LOOIO.
ourselves only as we are inwardly affected. Now this appears to be contradictory, inasmuch as we thus stand in a passive re lation to ourselves; and therefore in the systems- of psychology, the internal sense is commonly held to be one with the faculty of apperception, while we, on the contrary, carefully distin guish them.
That which determines the internal sense is the under standing, and its original power of conjoining the manifold of intuition, that is, of bringing this under an apperception (upon which rests the possibility of the understanding itself). Now, as the human understanding is not in itself a faculty of intuition, and is unable to exercise such a power, in order to conjoin, as it were, the manifold of its own intuition, the syn thesis of understanding considered per se, nothing but the unity of action, of which, as such, self-conscious, even apart from sensibility, by which, moreover, able to determine our internal sense in respect of the manifold which may be presented to according to the form of sensuous intuition. Thus, under the name of transcendental synthesis of imagi nation, the understanding exercises an activity upon the passive subject, whose faculty and so we are- right in saying that the internal sense affected thereby. Apperception and its synthetical unity are by no means one and the same with the internal sense. The former, as the source of all our synthetical conjunction, applies, under the name of the categories, to the manifold of intuition in general, prior to all sensuous intuition of objects. The internal sense, on the contrary, contains merely the form of intuition, but without any synthetical con
junction of the manifold therein, and consequently does not con tain any determined intuition, which possible only through consciousness of the determination of the manifold by the transcendental act of the imagination (synthetical influence of the understanding on the internal sense), which have named figurative synthesis.
This we can indeed always perceive in ourselves. We can not cogitate geometrical line without drawing in thought, nor circle without describing nor represent the three dimensions of space without drawing three lines from the same point perpendicular to one another. We cannot even cogitate time, unless, in drawing straight line (which to
* Length, breadth, and thickness. -- Tr. In difftr<<ut piwea. --7>
? ? ? a f
it,
it is
a f*
a
it
it is
I
is
it is
is
it
isa is, ;
? DEDUCTION OF THJ5 OATIdOBIM. 96
serve as the external figurative representation of time), we fix our attention on the act of the synthesis of the manifold, thereby we determine successively the internal sense, and
thus attend also to the succession of this
determination,
Motion as an act of the subject (not as a determination of an
object),* consequently the synthesis of the manifold in space,
if we make abstraction of space and attend merely to the act by which we determine the internal sense according to its form, is that which produces the conception of succession. The un derstanding, therefore, does by no means find in the internal sense any such synthesis of the manifold, but produces in that affects this sense. At the same time how [the]
who think distinct from the which intuites itself (other modes of intuition being cogitable as at least possible), and yet one and the same with this latter as the same subject how, therefore, am able to say " as an intelligence and
thinking subject, cognize myself as an object thought, so far as am, moreover, given to myself in intuition, --only, like other phsenomena, not as am in myself, and as considered the
understanding, but merely as appear," -- question that has in neither more nor less difficulty than the question, -- " How can be an object tomyself," or this, -- "How can be an object of my own intuition and internal perceptions. " But that such must be the fact, we admit that space merely pure form of the phenomena of external sense, can be clearly proved by the consideration that we cannot represent time, which not an object of external intuition, in any other way than under the image of line, which we draw in thought, mode of re presentation without which we could not cognize the unity of its dimension, and also that we are necessitated to take our determination of periods of time, or of points of tin. e, for all our internal perceptions from the changes which we perceive in outward things. follows that we must arrange the determinations of the internal sense, as phenomena in time, exactly in the same manner as we arrange those of the
Motion of an object in apace does not belong to pure science, con sequently not to geometry because, that thing moveable cannot be known priori, but only from experience. But motion, considered is tin ietcriptim of space, pure act of the successive synthesis of the rcani fold in external intuition by means of productive imagination, and
not only to geometry, but even to transcendental philosophy.
? ? ? b
by
;
a
a
if
is a
*
& it
;
It a
I
:
is
is a
is aI
I, I
a
a is
II I it
I I
is
it,
? 96 TRAKSCENDEITTAL LOGIC.
external senses in space. And consequently, if we grant
this latter, that by means of them we know objects only in so far as we are affected externally, we must also con fess, with regard to tha internal sense, that by means of it we intuite ourselves only as we are internally affected by ourselves; in other words, as regards internal intuition, we cognize our own subject only as phenomenon, and not as it is in itself. *
? 21.
On the other hand, in the transcendental synthesis of the manifold content of representations, consequently in the syn thetical unity of apperception, I am conscious of myself, not as I appear to myself, nor as I am in myself, but only that I am. This representation is a Thought, not an Intuition. Now, as in order to cognize ourselves, in addition to the act of thinking, which subjects the manifold of every possible intui tion to the unity of apperception, there is necessary a deter minate mode of intuition, whereby this manifold is given ; although my own existence is certainly not mere phenomenon
respecting
? (much less mere illusion), the determination of my existence f
* I do not see why so much difficulty should be found in admitting that our internal sense is affected by ourselves. Every act of attention exemplifies it. In such an act the understanding determines the internal sense by the synthetical conjunction which it cogitates, conformably to the internal intuition which corresponds to the manifold in the synthesis of the understanding. How much the mind is usually affected thereby every one will he able to perceive in himself.
f The / think expresses the act of determining my own existence. My existence is thus already given by the act of consciousness ; but the mode in which I must determine my existence, that is, the mode in which I must place the manifold belonging to my existence, is not thereby given. For this purpose intuition of self is required, and this intuition possesses a form given a priori, namely, time, which is sensuous, and belongs to our receptivity of the determinable. Now, as I do not possess another in tuition of self which gives the determining in me (of the spontaneity of which I am conscious), prior to the act of determination, in the same
manner as time gives the determinable, it is clear that I am unable to determine my own existence as that of a spontaneous being, but I am only able 10 represent to myself the spontaneity of my thought, that of my determination, and my existence remains ever determinable in
purely sensuous manner, that to say, like the existence of phenomenon.
But because of this spontaneity that call myself an intelligent.
? ? it is
I
is
a
a is,
? DEDUCTION OF THI CATEGOBIXB. 97
can tnly take place conformably to the form of the internal sense, according to the particular mode in which the mani fold which I conjoin is giren in internal intuition, and I have therefore no knowledge of myself as I am, but merely as I appear to myself. The consciousness of self is thus very far from a knowledge of self, in which I do not use tiie categories, whereby I cogitate an object, by means of the conjunction of the manifold in one apperception. In the same way as I require^ in order to the cognition of an object distinct from myself, hot only the thought of an object in general (in the category), but also an intuition by which to determine that general conception, in the same way do I require, in order to the cognition of myself, not only the con sciousness of myself or the thought that I think myself, but in addition an intuition of the manifold in myself, by which to determine this thought. It is true that I exist as an intel ligence which is conscious only of its faculty of conjunction or synthesis, but subjected in relation to the manifold which this intelligence has to conjoin to a limitative conjunction called the internal sense. My intelligence (that can render that conjunction or synthesis perceptible only accord ing to the relations of time, which are quite beyond the proper sphere of the conceptions, of the understanding, and conse quently cognize itself in respect to an intuition (which cannot possibly be intellectual, nor given the understanding), only as appears to itself, and not as would cognize itself, its intuition were intellectual.
22.
Transcendental Deduction the universally possible employ ment in experience the Pure Conceptions of the Under standing.
In the metaphysical deduction, the priori origin of the categories was proved by their complete accordance with the general logical functions of thought in the transcendental deduction was exhibited the possibility of the categories as a priori cognitions of objects of an intuition in general 16 and 17). At present we are about to explain the possibility of cognizing, priori, means of the categories, all objects which can possibly be presented to our senses, not, indeed, according to the form of their intuition, but according to the
? ? ? &
by
of
of ?
(?
if
is, I)
;
h
it
it by
? 38
TRANSCENDENTAL LOGIC.
i
laws of their conjunction or synthesis, and thus, as it were, of prescribing laws to nature, and even of rendering nature pos sible. For if the categories were adequate to this task, it would not be evident to us why everything that is presented to our senses must be subject to those laws which have an ipriori origin in the understanding itself.
I premise, that by the term synthesis of apprehension, I understand the combination of the manifold in an empirical
intuition, whereby perception, that empirical consciousness of the intuition (as phsenomenon), possible.
We have priori forms of the external and internal sensuous intuition in the representations of space and time, and to these
must the synthesis of apprehension of the manifold in
menon be always conformable, because the synthesis itself can only take place according to these forms. But space and time are not merely forms of sensuous intuition, but intuitions them selves (which contain manifold), and therefore contain priori the determination of the unity of this manifold. *
the Trans. ^Esthetic. ) Therefore unity of the synthesis of the manifold without or within us, consequently also con junction to which all that to be represented as determined in space or time must correspond, given priori along with
? phseno
(See
(not in) these intuitions, as the condition of the synthesis of
all apprehension of them. But this synthetical unity can be no other than that of the conjunction of the manifold of given intuition in general, in primitive act of consciousness, according to the categories, but applied to our sensuous intui tion. Consequently all synthesis, whereby alone even per ception possible, subject to the categories. And, as experience
Space represented as an object (as geometry really requires tc be) contain. , more than the mere form of the intuition namely, com bination of the manifold given according to the form of sensibility into representation that can be intuited so that the form the intuition gives us merely the manifold, but the formal intuition gives unity of representation. In the . Esthetic regarded this unity as belonging entirely to sensibility, for the purpose of indicating that antecedes all conceptions, although presupposes synthesis which does not belong to sense, through which alone, however, all our conceptions of space and time are possible. For as by means of this unity alone (the understanding deter mining the sensibility) space and time arc given as intuitions, follows that the unity of this intuition priori belongs to space and time, tod sot to the concef iun of the understanding HO).
? ? ((
it
a
a
il
it
; of
is
a
a
a
it
*
a
a I is
a
;
a
is
&
is
is is,
a
a
? UBDUCTIOK Of THB CATKQORtKS. Pit
ia cognition by means of conjoined perceptions, the categories
are conditions of the possibility of experience, and an there
fore valid a priori for all objects of experience. ? ****
When, then, for example, I make the empirical intuition of
a house by apprehension of the manifold contained therein
into a perception, the necessary unity of space and of my external sensuous intuition lies at the foundation of this act, and I, as it were, draw the form of the house conformably to this synthetical unity of the manifold in space. But this very synthetical unity remains, even when I abstract the form of space, and has its seat in the understanding, and is in fact the category of the synthesis of the homogeneous in an intui tion ; that is to say, the category of quantity, to which the aforesaid synthesis of apprehension, that the perception, must be completely conformable. *
To take another example, when perceive the freezing of water, apprehend two states (fluidity and solidity), which as such, stand toward each other mutually in relation of time. But in the time, which place as an internal intuition, at the
? foundation of this phenomenon, represent to myself syn thetical unity of the manifold, without which the aforesaid relation could not be given in an intuition as determined (in regard to the succession of time). Now this synthetical unity, as the priori condition under which conjoin the manifold of an intuition, make abstraction of the permanent form of my internal intuition (that to say, of time), the category of cause, by means of which, when applied to my sensibility,
and so in all other cases. *****
determine everything that occurs according to relations
time. Consequently apprehension in such an event, and the
event itself, as far as regards the possibility of its peremption,
stands under the conception of the relation of cause and effect:
Categories are conceptions which prescribe laws priori to
In this manner proved, that the synthesis of apprehension, which empirical, must necessarily be conformable to the synthesis of apper
ception, which intellectual, and contained priori in the category. It one and the same spontaneity which at one time, under the name of ima gination, at another under that of understanding, produces conjunction in the manifold of intuition.
82
? ? is
a
I
is
of
is
I *
it is
is,
&
if I
I
a
I
is
I
I a
is,
? 100 TRAUSCEKDEHTAL LOGIC.
phenomena, consequently to nature as the complex of all phenomena (natura materialiter tpectata). And now the question arises -- inasmuch as these categories are not derived from nature, and do not regulate themselves according to her as their model (for in that case they would be empirical)-- how it is conceivable that nature must regulate herself accord ing to them, in other words, how the categories can determine a priori the synthesis of the manifold of nature, and yet not derive their origin from her. The following is the solution of this enigma.
? It is not in the least more difficult to conceive how the laws of the phenomena of nature must harmonize with the understanding and with its ti priori form -- that its culty of conjoining the manifold -- than to understand how the phenomena themselves must correspond with the
priori form of our sensuous intuition. For laws do not exist in the phenomena any more than the phenomena exist as things in themselves. Laws do not exist except by re lation to the subject in which the phenomena inhere, so far as possesses understanding, just as phenomena have no existence except relation to the same existing subject so far as has senses. To things as things in themselves, con- formability to law must necessarily belong independently of on understanding to cognize them. But phenomena are only representations of things which are utterly unknown in re spect to what they are in themselves. But as mere repre sentations, they stand under no law of coi junction except that which the conjoining faculty prescribes. Now that which conjoins the manifold of sensuous intuition imagination,
mental act to which understanding contributes unity of intellectual synthesis, and sensibility, manifoldness of appre hension. Now as all possible perception depends on the syn thesis of apprehension, and this empirical synthesis itself on the transcendental, consequently on the categories, evident that all possible perceptions, and therefore everything that can attain to empirical consciousness, that all phenomena of nature, must, as regards their conjunction, be subject to the categories. And nature (considered merely as raiture in general) dependent on them as the original ground of her necessary con formability to law (as natura formaliter tpectata). But the pure faculty (of the understanding) of prescribing laws
? ? is
is,
it is
it is
is, fa
ah
is
it
it
by
in
in
? RESULT OF THE DEDUCTIOIT.
101
d priori to phenomena by means of mere categories, is not competent to enounce other or more laws than those on which a nature in general, as a conformability to law of phenomeua of space and time, depends. Particular laws, inasmuch as they concern empirically determined phsenomena, cannot be entirely deduced from pure laws, although they all stand under them. Experience must be superadded in order to know these particular laws ; but in regard to experience in
{general, and everything that can be cognized as an object I hereof, these <i priori laws arc our only rule and guide.
? 23.
Result of this Deduction of the Conceptions of the Under standing.
We cannot think any object except by means of the catego ries ; we cannot cognize any thought <<xcept by means of in tuitions corresponding to these conceptions. Now all our in tuitions are sensuous, and our cognition, in so far as the object of it is given, is empirical. But empirical cognition is expe rience ; consequently no h priori cognition is possible for us, except of objects of possible experience. *
But this cognition, which is limited to objects of experience, is not for that reason derived entirely from experience, but-- and this is asserted of the pure intuitions and the pure con ceptions cf the understanding -- there are, unquestionably, elements of cognition, which exist in the mind a priori. Now there are only two ways in which a necessary harmony of ex perience with the conceptions of its objects can be cogitated. Either experience makes these conceptions possible, or the conceptions make experience possible. The former of these
* Lest my readers should stumble tt this assertion, and the conclusions that may be too rashly drawn from it, I must remind them that the categories in the act of thought are by no means limited by the conditions of our sensuous intuition, but have nn unbounded sphere of action. It is only the cognition of the object of thought, the determining of the object, which requires intuition. In the absence of intuition, our thought of an object may still have true and useful consequences in regard to the exer. cise of reason by the subject. Hut as this exercise of reason is not always directed on the determination of the object, in other words, on cognition thereof, but also on the determination of the subject and its volition, I do not intend to treat of it in this place,
? ? ? ? 102 TRAJTBOOTDBWTAL LOCRO.
statements will not hold good with respect to the categories (nor in regard to pure sensuous intuition), for they are ctprion
conceptions, and therefore independent of experience. The assertion of an empirical origin would attribute to them a sort of generatio eequivoea.
? ? it,
;
? 8C TRANSCENDENTAL LOGIC.
Deditction OF THE fuh;s Conceftions OF the Undeb- STANDING. '
SECTION II.
Transcendental Deduction of the pure Conceftions of tub Understanding.
? 11.
Of the Possibility of a Conjunction of the manifold repre sentations given by Sense.
Tlie manifold content in our representations can be given in an intuition which is merely sensuous --in other words, is nothing but susceptibility ; and the form of this intuition can exist h priori in our faculty of representation, without being any thing else but the mode in which the subject is affected. But the conjunction (conjunctio) of a manifold in intuition never can be given us by the senses ; it cannot therefore be contained in the pure form of sensuous intuition, for it is a spontaneous act of the faculty of representation. And as we must, to distinguish it from sensibility, entitle this facult) understanding; so all conjunction -- whether conscious or un conscious, be it of the manifold in intuition, sensuous or non- sensuous, or of several conceptions --is an act of the under standing. To this act we shall give the general appellation of synthesis, thereby to indicate, at the same time, that we cannot represent any thing as conjoined in the object without having previously conjoined it ourselves. Of all mental notions, that of conjunction is the only one which cannot be given through objects, but can be originated only by the sub ject itself, because it is an act cf its purely spontaneous activity. The reader will easily enough perceive that the possibility of conjunction must be grounded in the very nature of this act, and that it must be equally valid for all conjunction ; and that analysis, which appears to be its contrary, must, never theless, always presuppose it ; for where the understanding has not previously conjoined, it cannot dissect or analyse, because only a>> conjoined by must that which to be analysed have been given to our faculty of representation.
But the conception of conjunction includes, besides the conception of the manifold and of the synthesis of that of thf
? ? ? it,
is
it,
? TBANSCEKDENTAI. DEDUCTION Ot THJ CATIGOltlEB. 81
unity of it also. Conjunction is the representation of the synthetical unity of the manifold. * This idea of unity, there fore, cannot arise out of that of conjunction ; much rather does that idea, by combining hself with the representation of the manifold, render the conception of conjunction pos sible. This unity, which a priori precedes all conceptions of conjunction, is not the category of unity(? 6); for all the categories are based upon logical functions of judgment, and in these functions we already have conjunction, and consequently unity of given conceptions. It is therefore evident that the category of unity presupposes conjunction. We must therefore look still higher for this unity (as quali tative, ? 8), in that, namely, which contains the ground of the unity of diverse conceptions in judgments, the ground, consequently, of the possibility of the existence of the under standing, even in regard to its logical use.
? 0/ the Originally Synthetical
? 12.
accompany
Unity of Apperception. -^
I think must
otherwise something would be represented in me which could not be thought ; in other words, the representation would either be impossible, or at least be, in relation tc me, nothing. That representation which can be given previously to all thought, is called intuition. All the diversity or manifold content of intuition, has, therefore, a necessary relation to the
The
all my representations, for
I think, in the iI
n which this is found. subject diversity
think, is an act of spontaneity; that is to say, it cannot be regarded as belonging to mere sensibility. I call it pure apperception, in order to distin-
But this representation,
* Whether the representations are in themselves
identical, and conse quently whether one can be thought analytically by means of and through the other, is a question which we need not at present consider. Our cun-
tcioumest of the one, when we speak of the manifold, is always distinguish able from our consciousness of the other ; and it is only respecting the synthesis of this (possible) consciousness that we here treat.
t Apperception simply means consciousness. But it has been considered better to employ this term, not only because Kant saw fit to have another word besides Bevmntteyn, but because the term contcimunem denotes a ttate, apperception an act of the ego; and from this alone the superiority Ot* the latter is apparent. -- 7>.
O
? ? ? 82 TRASaCWTDEKTAL LOGIC.
guish it from empirical ; or primitive apperception, because it is a self-consciIousness which, whilst it gives birth to the >>>
think, must necessarily be capable of accom panying all our representations. It is in all acts of conscious ness one and the same, and unaccompanied by no repre
sentation can exist for me. The unity of this apperception call the transcendental unity of self-consciousness, in order to indicate the possibility of priori cognition arising from it. For the manifold representations which are given in an intui tion would not all of them be my representations, they did not all belong to one self-consciousness, that as my representations (even although am not conscious of them as such), they must conform to the condition under which alone
they can exist together in common self-consciousness, be
cause otherwise they would not all without exception belong
to me. From this primitive conjunction follow many impor tant results.
For example, this universal identity of the apperception of the manifold given in intuition, contains synthesis of repre sentations, and possible only by means of the consciousness of this synthesis. For the empirical consciousness which accompanies difFerent representations in itself fragmentary and disunited, and without relation to the identity of the subject. This relation, then does not exist because accom pany every representation with consciousness, but because join one representation to another, and am conscious of the synthesis of them. Consequently, only because can connect
variety of given representations in one consciousness, possible that can represent to myself the identity of con sciousness in these representations in other words, the ana
lytical unity of apperception possible only under the pre supposition of synthetical unity. * The thought, "These repre-
All general conceptions -- as sucli -- depend, for their existence, on tlie analytical unity of consciousness. For example, when think of red general, thereby think to myself property which (as characteristic mark) can be discovered somewhere, or can be united with other repre sentations consequently, only by means of forethought possible synthetical unity that can think to myself the analytical. represen tation which cogitated as common to different representations, re garded as belonging to such as, besides this common representation, con tain something different; consequently must be previously thought in
synthetical unity with other although only possible representations, before
presentation
? ? ? it
is
I
A is
I
is,
I
is
I ;
it is
a
is
a
a
is
;
a
I
h
I a
I
it, if
*
a
a
is
in itI
I
? DEDUCTION OF THE CATEGOKIES.
tentatiofls given in intuition, belong all of them to me," is
"I unite them in one self-con sciousness, or can at least so unite them ;" and although this
accordingly just the same as,
thought is not itself the consciousness of the synthesis of re
presentations, it presupposes the possibility of it ; that is to say, for the reason alone, that I can comprehend the variety of my representations in one consciousness, do I call them my representations, for otherwise I must have as many- coloured and various a self as are the representations of which I am conscious. Synthetical unity of the manifold in intui tions, as given a priori, is therefore the foundation of the identity of apperception itself, which antecedes it priori all determinate thought. But the conjunction of representations into a conception is not to be found in objects themselves, nor can it be, as it were, borrowed from them and taken up into the understanding by perception, but it is on the contrary an operation of the understanding itself, which is nothing more than the faculty of conjoining a priori, and of bringing the variety of given representations under the unity of apper ception. This principle is the highest in all human cog nition.
This fundamental principle of the necessary unity of apper ception is indeed an identical, and therefore analytical propo sition i but it nevertheless explains the necessity for a synthesis of the manifold given in an intuition, without which the identity of self-consciousness would be incogitable. For the Ego, as a simple representation, presents us with no manifold content ; only in intuition, which is quite different from the representation Ego, can it be given us, and by means of con junction, it is cogitated in one self-consciousness. An under standing, in which all the manifold should be given by means of consciousness itself, would be intuitive ; our understanding can only think, and must look for its intuition to sense. I am, therefore, conscious of my identical self, in relation to all the variety of representations given to me in on intuition,
because I call all of them my representations. In other
I can think in it the analytical unity of consciousness which makes it ? coHCtptai comtmmu. And thus the synthetical unity of apperception is the highest point with which we must connect every operation of the under standing, even the whole of logic, and after it our transcendental philo sophy ; indeed, this faculty U the understanding itself.
? si
? ? ? 84 TKANSCENDENTAL LOGIC.
words, I am conscious myself of a necessary a prtori syn thesis of my representations, which is called the original synthetical unity of apperception, under which rank all the representations presented to me, but that only by means of a synthesis.
The principle of the Synthetical Unity of Apperception is the highest principle of all exercise of the Understanding.
? 13.
The supreme principle of the possibility of all intuition in relation to sensibility was, according to our transcendental esthetic, that all the manifold in intuition be subject to the formal conditions of Space and Time. The supreme prin ciple of the possibility of it in relation to the Understanding is : that all the manifold in it be subject to conditions of the originally synthetical Unity of Apperception. * To the former of these two principles are subject all the various representa tions of Intuition, in so far as they are given to us ; to the latter, in so far as they must be capable of conjunction in one consciousness ; for without this nothing can be thought or cognized, because the given representatioIns would not have
Understanding to speak generally, the faculty of Cog nitions. These consist in the determined relation of given representations to an object. But an object that, in the conception of which the manifold in given intuition
united. Now all union of representations requires unity of
? in common the act of the apperception
fore could not be connected in one self-consciousness.
consciousness in the synthesis of them.
the unity of consciousness alone that constitutes the possibility of representations relating to an object, and therefore of their objective validity, and of their becoming cognitions, and con-
Space and Time, and all portions thereof, are hitutiiom conse quently are, with manifold for their content, single representations. (See the Transcendental 1Eithetic. ) Consequently, they arc not pure conceptions, by means of which the same consciousness found in great number of representations but, on the contrary, they are many representations contained in one, the consciousness of which is, so to speak, compounded. The unity of consciousness nevertheless tyu- thttieal, and therefore primitive. From this peculiar character of con- tcicrasness follow many important consequences. (See 21. )
think ; and there
Consequently,
? ? is ?
a
is
;
is
a
it
is is
a
*
;
is,
? DEDUCTION OF THE CATEGORIES.
85
sequentlv, the possibility of the existence of the understanding itself.
The first pure cognition of understanding, then, upon which is founded all its other exercise, and which is at the same time perfectly independent of all conditions of mere sensuous intuition, is the principle of the original synthetical unity of apperception. Thus the mere form of external sensuous in tuition, namely, space, affords us, per se, no cognition ; it merely contributes the manifold in h priori intuition to a pos sible cognition. But, in order to cognize something in space, (for example, a line,) I must draw and thus produce syn thetically determined conjunction of the given manifold, so that the unity of this act at the same time the unity of con sciousness, (in the conception of line,) and by this means alone an object determinate space) cognized. The syn thetical unity of consciousness therefore, an objective con dition of all cognition, which do not merely require in order to cognize an object, but to which every intuition must neces sarily be subject, in order to become an object for me be cause in any other way, and without this synthesis, the mani fold intuition could not be united in one consciousness.
This proposition as already said, itself analytical, though constitutes the synthetical unity, the condition of all thought for states nothing more than that all my repre sentations in any given intuition, must be subject to the con dition which alone enables me to connect them, as my repre sentation with the identical self, and so to unite them syn thetically in one apperception, by means of the general ex
? think.
But this principle not to be regarded as principle for
every possible understanding, but only for that understanding means of whose pure apperception in the thought am, no manifold content given. The understanding or mind which contained the manifold in intuition, in and through the act itself of its own self-consciousness, in other words, an
understanding by and in the representation of which the objects of the representation should at the same time exist, would not require special act of synthesis of the manifold as the condition of the unity of its consciousness, an act of which the human understanding, which thinks only and can not intuite, has absolute need. But this principle the first
pression,
? ? is
a
(a
is
is,
by
/
; al
I is
in ;
is
a
a
it it
is I
is,
a
it,
? TBAN8CF. ? fl)F. NTAL 1,O010.
principle of all the operations of our understanding, *o that we cannot form the least conception of any other possible un derstanding, either of one such as should be itself intuition, or possess a sensuous intuition, but with forms different from those of space and time.
What Objective Unity of Self-consciousness is. ? 14.
It is by means of the transcendental unity of apperception that all the manifold given in an intuition is united into a conception of the object. On this account it is called ob jective, and must be distinguished from the subjective unity of consciousness, which is a determination of the internal sense, by means of which the said manifold in intuition is given empirically to be so united. Whether I can be empirically conscious of the manifold as co-existent or as successive, de pends upon circumstances, or empirical conditions. Hence the empirical unity of consciousness by means of association of representations, itself relates to a phenomenal world, and is wholly contingent. On the contrary, the pure form of intui tion in time, merely as an intuition,*. which contains a given manifold, is subject to the original unity of consciousness, and that solely by means of the necessary relation of the manifold in intuition to the / think, consequently by means of the pure synthesis of the understanding, which lies h priori at the foundation of all empirical synthesis. The transcendental unity of apperception is alone objectively valid ; the empirical which we do not consider in this essay, and which is merely a unity deduced from the former under given conditions in con-
creto, possesses only subjective validity. One person connects the notion conveyed in a word with one thing, another with another thing ; and the unity of consciousness in that which is empirical, in relation to that which given experi ence, not necessarily and universally valid.
The Logical Form all Judgments consists in the Objective
? Unity Apperception
the Conceptions contained therein.
15.
could never satisfy myself with the definition which gicians (rive of iudgment. is, according to them, the
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? DEDFOTIOK OF THE OATieOBIBS.
87
representation of a relation between two conceptions. Ishall not dwell here on the faultiness of this definition, in that it suits only for categorical and not for hypothetical or disjunc tive judgments, these latter containing a relation not of con ceptions but of judgments themselves ; --a blunder from which many evil results have followed. * It is more important for our present purpose to observe, that this definition does not determine in what the said relation consists.
But if I investigate more closely the relation of given cognitions in every judgment, and distinguish as belonging to the understanding, from the relation which produced ac cording to laws of the reproductive imagination, (which has only subjective validity), find that judgment nothing but the mode of bringing given cognitions under the objective unity of apperception. This plain from our use of the term of relation in judgments, in order to distinguish the objective unity of given representations from the subjective unity. For this term indicates the relation of these representations to the original apperception, and also their necessary unity, even though the judgment empirical, therefore contingent, as in the judgment, " All bodies are heavy. " do not mean by this, that these representations do necessarily belong to each other in empirical intuition, but that by means of the necessary unity of apperception they belong to each other in the syn thesis of intuitions, that to say, they belong to each other according to principles of the objective determination of all our representations, in so far as cognition can arise from them, these principles being all deduced from the main principle of the transcendental unity of apperception. In this way alone can there arise from this relation judgment, that rela tion which has objective validity, and perfectly distinct from that relation of the very same representations which
The tedious doctrine of the four syllogistic figures concerns only categorical syllogisms and although nothing more than an artifice by surreptitiously introducing immediate conclusions (consequential imme diate) among the premises of pure syllogism, to give rise to an appearance of more modes of drawing conclusion than that in the first figure, the artifice would not have had much success, had not its authors succeeded
bringing categorical judgments into exclusive respect, as those to which all others must be referred-- doctrine, however, which, according to
utterly false.
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in
*
a
a is
a is isI
f i,
al
;
it is
a is
a
is, a
I
is
is
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? 88 TKAWSCEITOENTAL LOGIC.
has only subjective validity--a relation, to wit, which ii produced according to laws of association. According to these laws, I could only say : " When 1 hold in my hand or carry a body, I feel an impression of weight ;" but I could not say : " It, the body, is heavy ;" for this is tantamount to saying both these representations are conjoined in the ob ject, that without distinction as to the condition of the subject, and do not merely stand together in my perception, however frequently the perceptive act may be repeated.
All Sensuous Intuitions are subject to the Categories, as Conditions under which alone the manifold Content tliem can be united
one Consciousness.
16.
The manifold content given in sensuous intuition comes
necessarily under the original synthetical unity of appercep tion, because thereby alone the unity of intuition possible
13). But that act of the understanding, by which the mani fold content of given representations (whether intuitions or conceptions), brought under one apperception, the logical function of judgments 15). All the manifold therefore, in so far as given in one empirical intuition, determined in relation to one of the logical functions of judgment, means of which brought into union in one consciousness. Now the categories are nothing else than these functions of judg ment, so far as the manifold in given intuition deter mined in relation to them(? 9). Consequently, the manifold
given intuition necessarily subject to the categories of the understanding.
Observation.
? 17.
The manifold in an intuition, which call mine, repre
sented by means of the synthesis of the understanding, ns belonging to the necessary unity of self-consciousness, and this takes place means of the category. * The category
* The proof of this re>>t>> on the represented unity intuition, neans of which an object given, and which always includes in itsell synthesis of the manifold to be intuited, and also the relation of t'l;i
atter to unity of apperception.
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? DEDUCTION O? CUE CATlGORtES. 89
indicates accordingly, that the empirical consciousness of a given manifold in an intuition is subject to a pure self-con sciousness H priori, in the same manner as an empirical in tuition is subject to a pure sensuous intuition, which is also h priori. -- In the above proposition, then, lies the beginning of a deduction of the pure conceptions of the understanding. Now, as the categories have their origin in the understanding alone, independently of sensibility, I must in my deduction make abstraction of the mode in which the manifold of an em pirical intuition is given, in order to fix my attention exclu sively on the unity which is brought by the understanding into the intuition by means of the category. In what follows
(? 22), it will be shown from the mode in which the empirical intuition is given in the faculty of sensibility, that the unity which belongs to it is no other than that which the category (according to ? 16) imposes on the manifold in a given intui tion, and thus its (I priori validity in regard to all objects of sense being established, the purpose of our deduction will be fully attained.
But there is one thing in the above demonstration, of which I could not make abstraction, namely, that the manifold to be intuited must be given previously to the synthesis of the un derstanding, and independently of it. How this takes place remains here undetermined. For if I cogitate an understand ing which was itself intuitive (as, for example, a divine un derstanding which should not represent given objects, but by whose representation the objects themselves should be given or produced) -- the categories would possess no signification in relation to such a faculty of cognition. They are merely rules for an understanding, whose whole power consists in thought, that in the act of submitting the synthesis of the manifold which presented to in intuition from very different quarter, to the unity of apperception -- faculty, therefore, which cognizes nothing per >>e, but only connects and arranges the material of cognition, the intuition, namely, which must be presented to means of the object. But to show reasons for this peculiar character of our understandings, that produces unity of apperception priori only by means of categories, and certain kind and number thereof, as
impossible as to explain why we are endowed with precisely so many functions of judgment and no more, or why time and space arc the only forms of our intuition.
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? 00 TBAHSCXirDXHTAL LOGIC. ? 18.
In Cognition, its Application to Objects of Experience is tit only legitimate use of the Category.
To think an object and to cognize an object are by no means the same thing. In cognition there are two elements :
firstly, the conception, whereby an object is cogitated category) ; and, secondly, the intuition, whereby the object is given. For supposing that to the conception a corresponding intuition could not be given, it would still be a thought as re gards its form, but without any object, and no cognition of anything would be possible by means of inasmuch as, so far as knew, there existed and could exist nothing to which my thought could be applied. Now all intuition possible to us
sensuous consequently, our thought of an object means of pure conception of the understanding, can become cogni tion for us, only in so far as this conception applied to objects of the senses.
Sensuous intuition either pure intuition (space and time) or empirical intuition--of that which im mediately represented in space and time means of sensation as real. Through the determination of pure intuition we ob tain a priori cognitions of objects, as in mathematics, but only as regards their form as phenomena whether there can exist things which must be intuited in this form not thereby established. All mathematical conceptions, therefore, are not per se cognition, except in so far as we presuppose that there exist things, which can only be represented con formably to the form of our pure sensuous intuition. But things in space and time are given, only in so far as they are percep tions (representations accompanied with sensation), therefore only by empirical representation. Consequently the pure con. ceptions of the understanding, even when they are applied to intuitions priori (as in mathematics), produce cognition only in so far as these (and therefore the conceptions of the understanding by means of them,) can be applied to empirical intuitions. Consequently the categories do not, even means of pure intuition, afford us any cognition of things they can only do so in so far as they can be applied to empirical intui tion. That to say, the categories serve only to render em pirical cognition possible. But this what we call experience
(the
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? DEDUCTION OF THE CATEGOBIEB. 91
cation to objects of ex* the categories.
The foregoing proposition of the utmost importance, for determines the limits of the exercise of the pure conceptions
of the understanding in regard to objects, just as transcen dental esthetic determined the limits of the exercise of the pure form of our sensuous intuition. Space and time, as conditions of the possibility of the presentation of objects to us, are valid no further than for objects of sense, con sequently, only for experience. Beyond these limits they re present to us nothing, for they belong only to sense, and have no reality apart from it. The pure conceptions of the understanding are free from this limitation, and extend to
objects of intuition in general, be the intuition like or unlike to ours, provided only be sensuous, and not intellectual. But this extension of conceptions beyond the range of our in tuition of no advantage for they are then mere empty con ceptions of objects, as to the possibility or impossibility of the existence of which they furnish us with no means of dis covery. They are mere forms of thought, without objective reality, because we have no intuition to which the synthetical unity of apperception, which alone the categories contain, could be applied, for the purpose of determining an object. Our sensuous and empirical intuition can alone give them significance and meaning. .
If, then, we suppose an object of non-sensuous intuition to be given, wo can in that case represent by all those pre dicates, which are implied in the presupposition that nothing appertaining to sensuous intuition belongs to for example that not extended, or in space that its duration not time that in no change (the effect of the determinations in time)
to be met with, and so on. But no proper knowledge merely indicate what the intuition of the object not, with
out being able to say what contained in for have not shown the possibility of an object to which my pure con
ception of understanding could be applicable, because have not been able to furnish any intuition corresponding to but am only able to say that our intuition not valid for it. But the most important point this, that to something al
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it
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it
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? 92 TRA2fSCEWDEirrAL LO9IC.
this kind not one category can be found applicable. Take, for example, the conception of substance, that is something tLat can exist as subject, but never as mere predicate ; in regard to this conception I am quite ignorant whether there can really be anything to correspond to such a determination of thought, if empirical intuition did not afford me the occa sion for its application. But of this more in the sequel.
? 20.
Of the Application of the Categories to Objects of the Sense* in general.
The pure conceptions of the understanding apply to objects of intuition in general, through the understanding alone, whether the intuition be our own or some other, provided only it be sensuous, but are, for this very reason, mere forms of thought, by means of which alone no determined object can be cognized. The synthesis or conjunction of the manifold in these conceptions relates, we have said, only to the unity of apperception, and is for this reason the ground of the possibility of & priori cognition, in so far as this cognition is dependent on the understanding. This synthesis is, there fore, not merely transcendental, but also purely intellectual. But because a certain form of sensuous intuition exists in the mind 5 priori which rests on the receptivity of the representa tive faculty (sensibility), the understanding, as a spontaneity, is able to determine the internal sense by means of the di versity of given representations, conformably to the synthetical unity of apperception, and thus to cogitate the synthetical unity of the apperception of the manifold of sensuous in tuition a priori, as the condition to which must necessarily
De submitted all objects of human intuition. And in this
nanner the categories as mere forms of thought receive ob
iective reality, that is application to objects which are given to us in intuition, but that only as phenomena, for it is only of phcenomena that we are capable of o priori intuition.
This synthesis of the-manifold of sensuous intuition, which is possible and necessary a priori, may be called figurative (synthesis speciosa), in contra-distinction to that which is co gitated in the mere category in regard to the manifold of an intuition in general, and is called connexion or conjunction of the understanding {synlhcr's intellectualis). Both are trans
? ? ? ? DEDUCTION OF TUB CATEGOBIES. M
cendental, not merely because they themselves precede A prion all experience, but also because they form the basis for the possibility of other cognition a priori.
But the figurative synthesis, when it has relation only to the originally synthetical unity of apperception, that is to the transcendental unity cogitated in the categories, must, to be distinguished from the purely intellectual conjunction, be en titled the transcendental synthesis of imagination. * Imagina tion is the faculty of representing an object even without its presence in intuition. Now, as all our intuition is sensuous, imagination, by reason of the subjective condition under which
alone it can give a corresponding intuition to the conceptions of the understanding, belongs to sensibility. But in so far as the synthesis of the imagination is an act of spontaneity, which is determinative, and not, like sense, merely determinable, and which is consequently able to determine sense a priori, according to its form, conformably to the unity of appercep tion, in so far is the imagination a faculty of determining sen sibility a priori, and ita synthesis of intuitions according to the categories, must be the transcendental synthesis of the imagi
? nation. It is an operation of the understanding on sensibility, and the first application of the understanding to objects of possible intuition, and at the same time the basis for the exer cise of the other functions of that faculty. As figurative, it is distinguished from the merely intellectual synthesis, which is produced by the understanding alone, without the aid of imagination. Now, in so far as imagination is spontaneity, I sometimes call it also the productive imagination, and distin guish it from the reproductive, the synthesis of which is sub ject entirely to empirical laws, those of association, namely, and which, therefore, contributes nothing to the explanation of the possibility of a priori cognition, and for this reason belongs not to transcendental philosophy, but to psychology.
*****
We have now arrived at the proper place for explaining the paradox, which must have struck every one in our exposition of the internal sense (? 0), namely, --how this sense repre sents us to our own consciousness, only as we appear to our selves, not as wc are in ourselves, because, to wit, we uituitc
* Sec note on p. 3-1
? ? ? 94 TKANSCKNUENTAX LOOIO.
ourselves only as we are inwardly affected. Now this appears to be contradictory, inasmuch as we thus stand in a passive re lation to ourselves; and therefore in the systems- of psychology, the internal sense is commonly held to be one with the faculty of apperception, while we, on the contrary, carefully distin guish them.
That which determines the internal sense is the under standing, and its original power of conjoining the manifold of intuition, that is, of bringing this under an apperception (upon which rests the possibility of the understanding itself). Now, as the human understanding is not in itself a faculty of intuition, and is unable to exercise such a power, in order to conjoin, as it were, the manifold of its own intuition, the syn thesis of understanding considered per se, nothing but the unity of action, of which, as such, self-conscious, even apart from sensibility, by which, moreover, able to determine our internal sense in respect of the manifold which may be presented to according to the form of sensuous intuition. Thus, under the name of transcendental synthesis of imagi nation, the understanding exercises an activity upon the passive subject, whose faculty and so we are- right in saying that the internal sense affected thereby. Apperception and its synthetical unity are by no means one and the same with the internal sense. The former, as the source of all our synthetical conjunction, applies, under the name of the categories, to the manifold of intuition in general, prior to all sensuous intuition of objects. The internal sense, on the contrary, contains merely the form of intuition, but without any synthetical con
junction of the manifold therein, and consequently does not con tain any determined intuition, which possible only through consciousness of the determination of the manifold by the transcendental act of the imagination (synthetical influence of the understanding on the internal sense), which have named figurative synthesis.
This we can indeed always perceive in ourselves. We can not cogitate geometrical line without drawing in thought, nor circle without describing nor represent the three dimensions of space without drawing three lines from the same point perpendicular to one another. We cannot even cogitate time, unless, in drawing straight line (which to
* Length, breadth, and thickness. -- Tr. In difftr<<ut piwea. --7>
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it is
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? DEDUCTION OF THJ5 OATIdOBIM. 96
serve as the external figurative representation of time), we fix our attention on the act of the synthesis of the manifold, thereby we determine successively the internal sense, and
thus attend also to the succession of this
determination,
Motion as an act of the subject (not as a determination of an
object),* consequently the synthesis of the manifold in space,
if we make abstraction of space and attend merely to the act by which we determine the internal sense according to its form, is that which produces the conception of succession. The un derstanding, therefore, does by no means find in the internal sense any such synthesis of the manifold, but produces in that affects this sense. At the same time how [the]
who think distinct from the which intuites itself (other modes of intuition being cogitable as at least possible), and yet one and the same with this latter as the same subject how, therefore, am able to say " as an intelligence and
thinking subject, cognize myself as an object thought, so far as am, moreover, given to myself in intuition, --only, like other phsenomena, not as am in myself, and as considered the
understanding, but merely as appear," -- question that has in neither more nor less difficulty than the question, -- " How can be an object tomyself," or this, -- "How can be an object of my own intuition and internal perceptions. " But that such must be the fact, we admit that space merely pure form of the phenomena of external sense, can be clearly proved by the consideration that we cannot represent time, which not an object of external intuition, in any other way than under the image of line, which we draw in thought, mode of re presentation without which we could not cognize the unity of its dimension, and also that we are necessitated to take our determination of periods of time, or of points of tin. e, for all our internal perceptions from the changes which we perceive in outward things. follows that we must arrange the determinations of the internal sense, as phenomena in time, exactly in the same manner as we arrange those of the
Motion of an object in apace does not belong to pure science, con sequently not to geometry because, that thing moveable cannot be known priori, but only from experience. But motion, considered is tin ietcriptim of space, pure act of the successive synthesis of the rcani fold in external intuition by means of productive imagination, and
not only to geometry, but even to transcendental philosophy.
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;
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:
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? 96 TRAKSCENDEITTAL LOGIC.
external senses in space. And consequently, if we grant
this latter, that by means of them we know objects only in so far as we are affected externally, we must also con fess, with regard to tha internal sense, that by means of it we intuite ourselves only as we are internally affected by ourselves; in other words, as regards internal intuition, we cognize our own subject only as phenomenon, and not as it is in itself. *
? 21.
On the other hand, in the transcendental synthesis of the manifold content of representations, consequently in the syn thetical unity of apperception, I am conscious of myself, not as I appear to myself, nor as I am in myself, but only that I am. This representation is a Thought, not an Intuition. Now, as in order to cognize ourselves, in addition to the act of thinking, which subjects the manifold of every possible intui tion to the unity of apperception, there is necessary a deter minate mode of intuition, whereby this manifold is given ; although my own existence is certainly not mere phenomenon
respecting
? (much less mere illusion), the determination of my existence f
* I do not see why so much difficulty should be found in admitting that our internal sense is affected by ourselves. Every act of attention exemplifies it. In such an act the understanding determines the internal sense by the synthetical conjunction which it cogitates, conformably to the internal intuition which corresponds to the manifold in the synthesis of the understanding. How much the mind is usually affected thereby every one will he able to perceive in himself.
f The / think expresses the act of determining my own existence. My existence is thus already given by the act of consciousness ; but the mode in which I must determine my existence, that is, the mode in which I must place the manifold belonging to my existence, is not thereby given. For this purpose intuition of self is required, and this intuition possesses a form given a priori, namely, time, which is sensuous, and belongs to our receptivity of the determinable. Now, as I do not possess another in tuition of self which gives the determining in me (of the spontaneity of which I am conscious), prior to the act of determination, in the same
manner as time gives the determinable, it is clear that I am unable to determine my own existence as that of a spontaneous being, but I am only able 10 represent to myself the spontaneity of my thought, that of my determination, and my existence remains ever determinable in
purely sensuous manner, that to say, like the existence of phenomenon.
But because of this spontaneity that call myself an intelligent.
? ? it is
I
is
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a is,
? DEDUCTION OF THI CATEGOBIXB. 97
can tnly take place conformably to the form of the internal sense, according to the particular mode in which the mani fold which I conjoin is giren in internal intuition, and I have therefore no knowledge of myself as I am, but merely as I appear to myself. The consciousness of self is thus very far from a knowledge of self, in which I do not use tiie categories, whereby I cogitate an object, by means of the conjunction of the manifold in one apperception. In the same way as I require^ in order to the cognition of an object distinct from myself, hot only the thought of an object in general (in the category), but also an intuition by which to determine that general conception, in the same way do I require, in order to the cognition of myself, not only the con sciousness of myself or the thought that I think myself, but in addition an intuition of the manifold in myself, by which to determine this thought. It is true that I exist as an intel ligence which is conscious only of its faculty of conjunction or synthesis, but subjected in relation to the manifold which this intelligence has to conjoin to a limitative conjunction called the internal sense. My intelligence (that can render that conjunction or synthesis perceptible only accord ing to the relations of time, which are quite beyond the proper sphere of the conceptions, of the understanding, and conse quently cognize itself in respect to an intuition (which cannot possibly be intellectual, nor given the understanding), only as appears to itself, and not as would cognize itself, its intuition were intellectual.
22.
Transcendental Deduction the universally possible employ ment in experience the Pure Conceptions of the Under standing.
In the metaphysical deduction, the priori origin of the categories was proved by their complete accordance with the general logical functions of thought in the transcendental deduction was exhibited the possibility of the categories as a priori cognitions of objects of an intuition in general 16 and 17). At present we are about to explain the possibility of cognizing, priori, means of the categories, all objects which can possibly be presented to our senses, not, indeed, according to the form of their intuition, but according to the
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? 38
TRANSCENDENTAL LOGIC.
i
laws of their conjunction or synthesis, and thus, as it were, of prescribing laws to nature, and even of rendering nature pos sible. For if the categories were adequate to this task, it would not be evident to us why everything that is presented to our senses must be subject to those laws which have an ipriori origin in the understanding itself.
I premise, that by the term synthesis of apprehension, I understand the combination of the manifold in an empirical
intuition, whereby perception, that empirical consciousness of the intuition (as phsenomenon), possible.
We have priori forms of the external and internal sensuous intuition in the representations of space and time, and to these
must the synthesis of apprehension of the manifold in
menon be always conformable, because the synthesis itself can only take place according to these forms. But space and time are not merely forms of sensuous intuition, but intuitions them selves (which contain manifold), and therefore contain priori the determination of the unity of this manifold. *
the Trans. ^Esthetic. ) Therefore unity of the synthesis of the manifold without or within us, consequently also con junction to which all that to be represented as determined in space or time must correspond, given priori along with
? phseno
(See
(not in) these intuitions, as the condition of the synthesis of
all apprehension of them. But this synthetical unity can be no other than that of the conjunction of the manifold of given intuition in general, in primitive act of consciousness, according to the categories, but applied to our sensuous intui tion. Consequently all synthesis, whereby alone even per ception possible, subject to the categories. And, as experience
Space represented as an object (as geometry really requires tc be) contain. , more than the mere form of the intuition namely, com bination of the manifold given according to the form of sensibility into representation that can be intuited so that the form the intuition gives us merely the manifold, but the formal intuition gives unity of representation. In the . Esthetic regarded this unity as belonging entirely to sensibility, for the purpose of indicating that antecedes all conceptions, although presupposes synthesis which does not belong to sense, through which alone, however, all our conceptions of space and time are possible. For as by means of this unity alone (the understanding deter mining the sensibility) space and time arc given as intuitions, follows that the unity of this intuition priori belongs to space and time, tod sot to the concef iun of the understanding HO).
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? UBDUCTIOK Of THB CATKQORtKS. Pit
ia cognition by means of conjoined perceptions, the categories
are conditions of the possibility of experience, and an there
fore valid a priori for all objects of experience. ? ****
When, then, for example, I make the empirical intuition of
a house by apprehension of the manifold contained therein
into a perception, the necessary unity of space and of my external sensuous intuition lies at the foundation of this act, and I, as it were, draw the form of the house conformably to this synthetical unity of the manifold in space. But this very synthetical unity remains, even when I abstract the form of space, and has its seat in the understanding, and is in fact the category of the synthesis of the homogeneous in an intui tion ; that is to say, the category of quantity, to which the aforesaid synthesis of apprehension, that the perception, must be completely conformable. *
To take another example, when perceive the freezing of water, apprehend two states (fluidity and solidity), which as such, stand toward each other mutually in relation of time. But in the time, which place as an internal intuition, at the
? foundation of this phenomenon, represent to myself syn thetical unity of the manifold, without which the aforesaid relation could not be given in an intuition as determined (in regard to the succession of time). Now this synthetical unity, as the priori condition under which conjoin the manifold of an intuition, make abstraction of the permanent form of my internal intuition (that to say, of time), the category of cause, by means of which, when applied to my sensibility,
and so in all other cases. *****
determine everything that occurs according to relations
time. Consequently apprehension in such an event, and the
event itself, as far as regards the possibility of its peremption,
stands under the conception of the relation of cause and effect:
Categories are conceptions which prescribe laws priori to
In this manner proved, that the synthesis of apprehension, which empirical, must necessarily be conformable to the synthesis of apper
ception, which intellectual, and contained priori in the category. It one and the same spontaneity which at one time, under the name of ima gination, at another under that of understanding, produces conjunction in the manifold of intuition.
82
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? 100 TRAUSCEKDEHTAL LOGIC.
phenomena, consequently to nature as the complex of all phenomena (natura materialiter tpectata). And now the question arises -- inasmuch as these categories are not derived from nature, and do not regulate themselves according to her as their model (for in that case they would be empirical)-- how it is conceivable that nature must regulate herself accord ing to them, in other words, how the categories can determine a priori the synthesis of the manifold of nature, and yet not derive their origin from her. The following is the solution of this enigma.
? It is not in the least more difficult to conceive how the laws of the phenomena of nature must harmonize with the understanding and with its ti priori form -- that its culty of conjoining the manifold -- than to understand how the phenomena themselves must correspond with the
priori form of our sensuous intuition. For laws do not exist in the phenomena any more than the phenomena exist as things in themselves. Laws do not exist except by re lation to the subject in which the phenomena inhere, so far as possesses understanding, just as phenomena have no existence except relation to the same existing subject so far as has senses. To things as things in themselves, con- formability to law must necessarily belong independently of on understanding to cognize them. But phenomena are only representations of things which are utterly unknown in re spect to what they are in themselves. But as mere repre sentations, they stand under no law of coi junction except that which the conjoining faculty prescribes. Now that which conjoins the manifold of sensuous intuition imagination,
mental act to which understanding contributes unity of intellectual synthesis, and sensibility, manifoldness of appre hension. Now as all possible perception depends on the syn thesis of apprehension, and this empirical synthesis itself on the transcendental, consequently on the categories, evident that all possible perceptions, and therefore everything that can attain to empirical consciousness, that all phenomena of nature, must, as regards their conjunction, be subject to the categories. And nature (considered merely as raiture in general) dependent on them as the original ground of her necessary con formability to law (as natura formaliter tpectata). But the pure faculty (of the understanding) of prescribing laws
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? RESULT OF THE DEDUCTIOIT.
101
d priori to phenomena by means of mere categories, is not competent to enounce other or more laws than those on which a nature in general, as a conformability to law of phenomeua of space and time, depends. Particular laws, inasmuch as they concern empirically determined phsenomena, cannot be entirely deduced from pure laws, although they all stand under them. Experience must be superadded in order to know these particular laws ; but in regard to experience in
{general, and everything that can be cognized as an object I hereof, these <i priori laws arc our only rule and guide.
? 23.
Result of this Deduction of the Conceptions of the Under standing.
We cannot think any object except by means of the catego ries ; we cannot cognize any thought <<xcept by means of in tuitions corresponding to these conceptions. Now all our in tuitions are sensuous, and our cognition, in so far as the object of it is given, is empirical. But empirical cognition is expe rience ; consequently no h priori cognition is possible for us, except of objects of possible experience. *
But this cognition, which is limited to objects of experience, is not for that reason derived entirely from experience, but-- and this is asserted of the pure intuitions and the pure con ceptions cf the understanding -- there are, unquestionably, elements of cognition, which exist in the mind a priori. Now there are only two ways in which a necessary harmony of ex perience with the conceptions of its objects can be cogitated. Either experience makes these conceptions possible, or the conceptions make experience possible. The former of these
* Lest my readers should stumble tt this assertion, and the conclusions that may be too rashly drawn from it, I must remind them that the categories in the act of thought are by no means limited by the conditions of our sensuous intuition, but have nn unbounded sphere of action. It is only the cognition of the object of thought, the determining of the object, which requires intuition. In the absence of intuition, our thought of an object may still have true and useful consequences in regard to the exer. cise of reason by the subject. Hut as this exercise of reason is not always directed on the determination of the object, in other words, on cognition thereof, but also on the determination of the subject and its volition, I do not intend to treat of it in this place,
? ? ? ? 102 TRAJTBOOTDBWTAL LOCRO.
statements will not hold good with respect to the categories (nor in regard to pure sensuous intuition), for they are ctprion
conceptions, and therefore independent of experience. The assertion of an empirical origin would attribute to them a sort of generatio eequivoea.
