Abstract

In this paper, I will reconstruct Kant’s theory of illusion from the perspective of his transcendental philosophy. I argue that it is Kant’s theory of dialectic as the “logic of illusion” that grounds both theoretical and practical error and that traces them back to a common root: the operation of rationalizing by theoretical and practical reason. I analyze different kinds of theoretical and practical errors and show how they are grounded in reason’s general propensity to rationalize. The paper exposes this common root and shows which rules Kant develops in order to avoid rationalizing.