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: "There is no such thing as an absolute notion of justice not referring to a definite system of social organization. . . . There is neither right nor wrong outside the social nexus." - Human Action