 That the human intellect is limited is a central theme in what Kant called his “critical philosophy”, which precisely aims to set out those limits. Moreover, as is suggested by his famous claim to have “found it necessary to deny knowledge in order to make room for faith” (Critique of Pure Reason, Bxxx), there is a religious impetus behind this project of a sort that Luther might have recognized, which is also reflected in Kant’s hostility to rationalistic attempts to prove the existence of God. Kant may also be said to share Luther’s Augustinian pessimism regarding human nature, where he frequently remarks on our evident self-concern, and in Religion Within the Boundaries of Mere Reason (1793) attributes the propensity to radical evil to all human beings, namely 