No More Learning

To that one in the solution of which the latter could do nothing but
commit paralogisms (namely, that of immortality), because it could not
lay hold of the character of permanence, by which to complete the
psychological conception of an ultimate subject necessarily ascribed
to the soul in self-consciousness, so as to make it the real
conception of a substance, a character which practical reason
furnishes by the postulate of a           required for accordance
with the moral law in the summum bonum, which is the whole end of
practical reason.