Ludwig von Mises
Ludwig Heinrich Edler von Mises (German: [ˈluːtvɪç fɔn ˈmiːzəs]; 29 September 1881 – 10 October 1973) was a philosopher, Austrian School economist, sociologist, and classical liberal. He became a prominent figure in the Austrian School of economic thought and is best known for his work on praxeology, a study of human choice and action. Fearing a Nazi takeover of Switzerland, where he was living at the time, Mises emigrated to the United States in 1940. Mises' thought has exerted significant influence on the libertarian movement in the United States in the mid-20th century.