In 1904/05 the first edition of Weber’s Protestant Ethics was issued, where the thematic framing is ‘uncertain’ and not yet completed: religion is linked to a certain kind of ethos (of the economic system) and of ethic (rational), the ethic of «ascetic Protestantism». Around the same years, Sombart outlines the expository path contained in Modern Capitalism, a detailed «picture of the general economic development», which seems to be a ‘more serious’ work – for its content and set of problems – when compared to the research conducted by his friend and colleague Max Weber. Both scholars view the question of the rise and development of capitalism as a rhythmic research: from the historic origins of the phenomenon, to the elaboration, synthesi...