Immanuel Kant

German philosopher Immanuel Kant (1724–1804) reshaped modern debates about knowledge, metaphysics, ethics, and aesthetic judgment through his critical philosophy. The Critique of Pure Reason investigates what human understanding can know and where its legitimate limits lie. Fundamental Principles of the Metaphysic of Morals develops an account of duty, freedom, and principles that can claim universal validity, while The Critique of Practical Reason extends that ethical project. Kant’s Prolegomena to Any Future Metaphysics offers a shorter route into problems addressed by the first Critique, though it remains conceptually demanding. Readers focused on ethics can approach the moral writings before the larger system; The Critique of Pure Reason is the decisive but denser centre for understanding his account of experience and reason.