This book, first published in 1961 and revised in 1964, is both a critical study of a body of thought and an historical account of how Marxist theory arose from the context of European history in the 19th century. It traces the development of socialist thought from the French to the Russian Revolutions and attempts to show in what manner the political and intellectual problems of Central Europe between 1848 and 1948 came to dominate the theory...