From Socrates to existentialism—how have great thinkers shaped human thought? Philosophy has influenced every aspect of human civilization, from ethics and politics to science and art. This book explores the major schools of thought, including ancient Greek philosophy, medieval scholasticism, the Enlightenment, and modern existentialism. Figures like Confucius, Descartes, and Nietzsche revolutionized how we understand the world. If you’re fascinated by deep questions and the evolution of ideas, this book is your guide to the history of philosophy.