Kant's Political Religion: The Transparency of Perpetual Peace and the Highest Good

Scholars have long debated the relationship between Kant’s doctrine of right and his doctrine of virtue (including his moral religion or ethico-theology), which are the two branches of his moral philosophy. This article will examine the intimate connection in his practical philosophy between perpetual peace and the highest good, between political and ethico-religious communities, and between the types of transparency peculiar to each. It will show how domestic and international right provides a framework for the development of ethical communities, including a kingdom of ends and even the noumenal ethical community of an afterlife, and how the transparency and trust achieved in these communities is anticipated in rightful political society by publicity and the mutual confidence among citizens that it engenders. Finally, it will explore the implications of this synthesis of Kant’s political and religious philosophies for contemporary Kantian political theories, especially those of Jürgen Habermas and John Rawls.