When Bruce Duffy's The World As I Found It was first published, critics and readers were bowled over by its daring reimagining of the lives of three very different men, the philosophers Bertrand Russell, G. E. Moore, and Ludwig Wittgenstein. A brilliant group portrait with the vertiginous displacements of twentieth-century life looming large in the background, Duffy's novel depicts times and places as various as Vienna 1900, the trenches of World War I, Bloomsbury, and the colleges of Cambridge, while the complicated main characters appear not only in thought and dispute but in love and despair. Wittgenstein, a strange, troubled, and troubling man of gnawing contradictions, is at the center of a novel that reminds us that the apparently abstract and formal questions that animate philosophy are nothing less than the intractable matters of life and death.