Ludwig Wittgenstein is recognized as one of the most original and powerful thinkers of this century. Nonetheless, his personal path, including both his troubles with the English philosophical community, and his particular blend of skepticism and mysticism, remain enigmatic. Ray Monk shows what made the man by penetrating the most profound issues of his philosophy.A philosopher with an diploma from Oxford, Ray Monk dedicated his his first research work to the the mathematical philosophy of Wittgenstein.