Talcott parsons, was among the first to introduce weber s writings to english readers. Parsons implied that marx and his followers had somehow failed to understand that ideas are important in history. Soon it became common opinion that weber s work had been intended as a refutation of marxian theoretical and methodological principles. Although this view is dominant, it has not gone unchallenged. Marx are compatible and complementary, despite political and ideological differences that exist between the two thinkers. It is beyond doubt that weber knew marx s work quite well, and took them into account. Weber criticized marxism for confusing technological with economic conditions. Chapter focuses on the methodological and substantive affinities between marx and weber. Sole objective is to extract the most fruitful analytical elements from both of these extraordinary thinkers, and thus to lay firm foundations for a historical sociology.