Kant on Metaphysics as a Rigorous Science

Kant is often thought of as a critic of metaphysics, but he wanted rather to replace untenable metaphysics based on pure reason alone with a scientific metaphysics that expresses the necessary relations among pure intuition, understanding, and reason. This scientific metaphysics has two parts, theoretical and practical, or ultimately the metaphysics of nature and the metaphysics of morals. This paper explores the grounds and limits of these two parts of meta-physics as a rigorous science.