This work argues that teleological motives lie at the heart of Kant¿s critical philosophy and that a precise analysis of teleological structures can both illuminate the basic strategy of its fundamental arguments and provide a key to understanding its unity. It thus aims, through an examination of each of Kant¿s major writings, to provide a detailed interpretation of his claim that philosophy in the true sense must consist of a teleologia rationis humanae. The author argues that Kant¿s critical philosophy forged a new link between traditional teleological concepts and the basic structure of rationality, one that would later inform the dynamic conception of reason at the