A History of Philosophy in the Twentieth Century - Paperbackby Christian Delacampagne (Author) In A History of Philosophy in the Twentieth Century, Christian Delacampagne reviews the discipline's divergent and dramatic course and shows that its greatest figures, even the most unworldly among them, were deeply affected by events of their time. From Ludwig Wittgenstein, whose famous Tractatus was actually composed in the trenches during World War I, to Edmund Husserl and Martin Heidegger one who found himself