Immanuel Kant (1724–1804), born in Königsberg, Prussia, was the founder of German idealism and one of the most important philosophers in Western history. He rarely left his hometown yet shook the European intellectual world with his profound thought. His afternoon walks were so punctual that neighbors reportedly set their clocks by him.
Kant authored the three Critiques: the Critique of Pure Reason explored the limits of human knowledge, the Critique of Practical Reason established his moral philosophy, and the Critique of Judgment addressed aesthetics and teleology. He proposed the categorical imperative—the principle that one should act only according to maxims that could become universal laws—and insisted that humans must be treated as ends, never merely as means.
Kant's critical philosophy synthesized rationalism and empiricism, profoundly shaping modern epistemology, ethics, political philosophy, and aesthetics. His concept of human dignity became a cornerstone of modern human rights theory and international law.
