Originating in the pioneering work of Gottlob Frege, Bertrand Russell, G. E. Moore, and Ludwig Wittgenstein in the four decades around the turn of the twentieth century, analytic philosophy established itself in various forms in the 1930s. After the Second World War, it developed further in North America, in the rest of Europe, and is now growing in influence as the dominant philosophical tradition right across the world, from Latin America to East Asia. Contents: Gottlob Frege On Sense and Reference Bertrand Russell The Problems of Philosophy Our Knowledge of the External World Why Men Fight Political Ideals Mysticism and Logic and Other Essays The Practice and Theory of Bolshevism The Analysis of Mind Free Thought and Official Propaganda G. E. Moore Principia Ethica Philosophical Studies Ludwig Wittgenstein Tractatus Logico-Philosophicus (With an Introduction by Bertrand Russell)