Mohism was an ancient Chinese philosophical movement founded in the fifth century B.C.E. by the charismatic artisan Mozi, or "Master Mo." The Mohists advanced a consequentialist ethics that anticipated Western utilitarianism by more than two thousand years and developed fascinating logical, epistemological, and political theories that set the terms of philosophical debate in China for generations. They were the earliest thinkers to outline a just war doctrine and to explain the origin of government from a state of nature. Their epistemology and psychology provide intriguing alternatives to contemporary Western mentalism. The Philosophy of the Mozi is an extensive study of Mohism that immerses readers in the Mohist worldview, situates the movement's rise and decline within Chinese history, and highlights its relevance to modern thought.