Max Weber was a legally trained historian, appointed as a professor of economics, who played a founding role in German sociology. He was important as a political and constitutional commentator. His early work was in ancient history, where he advanced a novel account of the effect of the loss of a supply of new slaves and the declining position of the free peasants in Italy and its consequences for the decline of Roman cities. As a private scholar and editor, he wrote his most influential works, including ‘The Protestant Ethic and the Spirit of Capitalism,’ which argued that the doctrine of predestination created a psychological sanction which produced the rationalizing capitalist. His methodological writings were a defense of a causal socia...