Monk's energetic enterprise is remarkable for the interweaving of the philosophical and the emotional aspects of Wittgenstein's life ? Sunday TimesRay Monk's reconnection of Wittengenstein's philosophy with his life triumphantly carries out the Wittengensteinian task of "changing the aspect" of Wittgenstein's work, getting us to see it in a new way ? Sunday TelegraphThis biography transforms Wittengenstein into a human being ? Independent on SundayIt is much to be recommended ? ObserverMonk's biography is deeply intelligent, generous to the ordinary reader... It is a beautiful portrait of a beautiful life ? Guardian Biografía del autor Ray Monk is the author of Ludwig Wittgenstein: The Duty of Genius, for which he won the Mail on Sunday/John Llewellyn Rhys Prize and the Duff Cooper Award. His previous work includes Bertrand Russell: The Spirit of Solitude.