First published in 1973, Sir Anthony Kenny´s classic introduction to Wittgenstein was widely praised for offering a lucid and historically informed account of the philosopher´s core concerns. Kenny´s study is also remarkable for demonstrating the continuity between Wittgenstein´s early and late writings. Focusing on Wittgenstein´s philosophy of mind and language, Kenny closely examines the works of the middle years. He exposes apparent conflicts and then goes on to reconcile them, providing a persuasive argument for the unity of Wittgenstein´s thought. This revised edition includes an extensive new introduction in which Kenny outlines developments in Wittgenstein scholarship since the book was first published and assesses Wittgenstein´s influence in the latter part of the twentieth century.