Abstract
Most philosophers do not read Kant’s philosophy of religion as providing a foundation for Christianity, or even as in line with it. Recently, however, a number of so-called “affirmative Kantians” have argued that Kant’s philosophy of religion explicitly aims at recovering the spirit of Christianity. In this article I scrutinize this claim with regard to Kant’s conceptualization of “grace” as a supplement to his moral theory. Contrary to these “affirmative Kantians,” I argue that Kant’s account of grace stems from Kant’s moral pessimism, not from any sense of the shortcomings of human beings in fulfilling their duties or the religious need for supernatural cooperation. Kant’s concept of grace tries to moderate this pessimism by providing what is needed for the possibility of moral progress. But simply by the way in which Kant regards grace as a rational concept needed for his moral theory, it seems to me that his philosophy of religion runs counter to certain central convictions of Christianity