Wittgenstein and the future of philosophy: a reassessment after 50 years; papers of the 24th International Wittgenstein Symposium August 12 - 18, 2001, Kirchberg am Wechsel / 2 - Haller, Rudolf (Wittgenstein and the future of philosophy a reassessment after 50 years; papers of the 24th International Wittgenstein Symposium August 12 - 18, 2001, Kirchberg am Wechsel, 2001)