Immanuel Kant was a German philosopher who lived from 1724 to 1804. He is widely regarded as one of the most influential thinkers of modern Europe and his work has been central to the development of many philosophical movements. Kant's most well-known works include Critique of Pure Reason, Groundwork of the Metaphysics of Morals, and Prolegomena to Any Future Metaphysics. His work has had a lasting impact on the fields of ethics, aesthetics, and epistemology.