For 10 points, name this German philosopher of Critique of Pure Reason.
This thinker outlined the formation of a global republic in his work Perpetual Peace, while he defended against attacks on his most famous work in his Prolegomena to Any Future Metaphysics. He divided all objects into a phenomenon and noumenon, with the latter being associated with the (*) "thing-in-itself," and asserted that everyone should act only in such a way that they could will it to become a universal law, a maxim known as the categorical imperative. For 10 points, name this German philosopher of Critique of Pure Reason.
This thinker outlined the formation of a global republic in his work Perpetual Peace, while he defended against attacks on his most famous work in his Prolegomena to Any Future Metaphysics.
Immanuel Kant