Abstract

Kant tells us that just as understanding unifies appearances under concepts, reason seeks to unify empirical concepts into a system. But why do empirical concepts require unification in a system? The text of the Critique of Pure Reason provides the basis for starkly divergent answers to this question. On the one hand, Kant seems to take the Transcendental Analytic to have demonstrated the ability of the understanding to employ both pure and empirical concepts without participation by reason. On the other hand, in a number of places Kant says things that imply that reason’s assumption that empirical concepts can and ought to be unified in a hierarchical system implicates understanding in addition to the categories, perhaps even elevating systematicity to a condition of the possibility of experience on a par with the categories. I argue for the intermediary position that systematization is necessary for the coherence of our empirical concepts, which is for Kant the criterion of empirical truth. The goal of complete coherence among our concepts is part of reason’s task of criticizing itself, and thus for the project of setting metaphysics on the “secure course of a science.” (Bvii)