A pioneering figure in analytic philosophy, Ludwig Wittgenstein (1889-1951) is a clear example of philosophical genius. A profoundly intense, tortured, and solitary man, he produced two masterpieces of philosophy with fundamentally opposed views of language — both of which have been wildly influential. Peter Hacker introduces us to perhaps the most important philosopher since Kant, and explains why Wittgenstein would be horrified by Noam Chomsky.