Joseph Cropsey (1919-2012) was a distinguished service professor emeritus in the department of political science at the University of Chicago, where he taught since 1958. He previously was on the faculty of the City College of New York and the New School for Social Research. His scholarly work examined classical political thinkers such as Socrates and Plato, as well as the foundations of modern liberalism in Thomas Hobbes and Adam Smith. He also collaborated with Leo Strauss, co-editing the inflential overview of Western political thought History of Political Philosophy.