No More Learning

For, we can not presuppose supreme finality in nature a priori, that
as essentially belonging to nature, how can we be directed to endeavour to           this unity, and, rising gradually through its different degrees, to approach the supreme per fection of an author of all-- perfection which
necessary, and therefore cognizable a priori The regulative principle directs us to presuppose systematic unity absolutely, and, consequently, as following from the essential nature of things -- but only as unity
procedure
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