Economists of this century of the broadest vision and the keenest insight — men such as Ludwig von Mises, Frank H. Knight, and F.A. Hayek — came early to the conclusion that mastery of pure economic theory was not enough, and that it was vital to explore related and fundamental problems of philosophy, political theory, and history, writes Murray N. Rothbard (1926–1995).

This audio Mises Daily is narrated by Floy Lilley.