Kant's Religion within the Boundaries of Mere Reason is one of the great modern examinations of religion's meaning, function and impact on human affairs. In this volume, the first complete English-language commentary on the work, James J. DiCenso explains the historical context in which the book appeared, including the importance of Kant's conflict with state censorship. He shows how the Religion addresses crucial Kantian themes such as the relationship between freedom and morality, the human propensity to evil, the status of historical traditions in relation to ethical principles, and the interface between individual ethics and social institutions. The major arguments are clearly and precisely explained, and the themes are highlighted and located within Kant's mature critical philosophy, especially his ethics. The commentary will be valuable for all who are interested in the continuing relevance of religion for contemporary inquiries into ethics, public institutions and religious traditions.