ABSTRACT

As is well known, Kant advanced a moral philosophy qua “metaphysics of morals” grounded in a theoretical critique of “practical reason.” Many philosophers interpreted Kant’s project to be epistemological in character rather than metaphysical, hence Heidegger’s debate with Cassirer at Davos on the proper reading of Kant. Heidegger’s Kantbuch further elucidated his disagreement with the neo-Kantians at the University of Marburg as to Kant’s critical project. Here I consider this difference in interpretation of Kant and its meaning for an understanding of moral philosophy in particular. Heidegger thus spoke to a proper understanding of Kant’s categorical imperative – a discussion one must take into account in view of criticism that Heidegger’s thought excludes a “systematic” concern with “normative” ethics.