This document provides an overview of ancient philosophies from China, India, and Greece. It discusses the key concepts of Confucianism in Chinese philosophy such as ritual, relationships, filial piety, and loyalty. It also mentions Legalism which emphasized consolidating wealth and power for the state. In Indian philosophy it lists schools like Astika, Nastika, Mimamsa, and Buddhism. For Greek philosophy it outlines pre-Socratic thinkers like Thales and Heraclitus and Socrates who used questioning to stimulate critical thinking. It also briefly discusses Plato, Aristotle and his laws of thought, and Zeno's paradoxes.