Wilhelm Röpke (1899-1966) was schooled in the tradition of the Austrians and made enormous contributions to the study of political institutions. His powerful anti-Keynesian writings in particular underscore what an outstanding economist he was and the extent to which he was influenced by Mises. Röpke defended sound money and free trade, and attacked welfare. While some consider him a doubter on free markets, he was in fact a passionate advocate of laissez-faire.
Ludwig von Mises: "This, then, is freedom in the external life of manthat he is independent of the arbitrary power of his fellows. Such freedom is no natural right. It did not exist under primitive conditions. It arose in the process of social development and its final completion is the work of mature Capitalism." - Socialism