Julius Matthew Emil Moravcsik (26 April 1931 – 3 June 2009) was an American philosopher who specialized in ancient Greek philosophy. His main professional interests were in Greek philosophy – especially Plato, Aristotle, and the pre-Socratic philosophers. He also made important contributions to the philosophy of language, aesthetics, metaphysics, and ethics. In particular, he was engaged by the notion of friendship. Life and career Julius Moravcsik was born April 26, 1931, in Budapest. His father was Gyula Moravcsik, his brother is Michael J. Moravcsik, and his sister is Edith A. Moravcsik. He died June 3, 2009, in Palo Alto, California, US, where he was a professor of philosophy at Stanford University. Moravcsik left his native Hungary for the US at the age of 17. He earned his BA in philosophy at Harvard University, class of 1953. Subsequently, he spent a year of study at Oxford and then received his PhD from Harvard in 1959. His first academic position was at Drexel Institute (now Drexel University) in Philadelphia, Pennsylvania, where he stayed a year. Next came a nine-year stay at the University of Michigan, where he went from instructor to associate professor. In 1968 he went to Stanford as Professor of Philosophy. He taught at Stanford for 39 years until he retired in 2007. During his career, he lectured at more than 50 colleges and universities in the US, as well as in 26 countries around the world. During two periods, 1972–75 and 1983–86, Moravcsik served as chair of the Stanford Philosophy Department. He contributed greatly to building the department; his appointments, included Stuart Hampshire and J. O. Urmson from England and the Canadian philosopher Ian Hacking. While at Stanford, Moravcsik encouraged the development of interdisciplinary initiatives. He helped forge strong connections between philosophy and classics. His advocacy was important in the formation of the Linguistics Department and the development of a History of Science Program. He was the principal investigator on a Sloan Cognitive Science Grant in the 1970s. Many important relationships developed and common interests were discovered, at the many conferences and colloquia and courses that Moravcsik sponsored. These connections among philosophers, linguists, psychologists, computer scientists and others, not only from Stanford but also from research institutes such as SRI and Xerox-PARC, were important in formation of the Center for the Study of Language and Information and the Symbolic Systems Program. Honors and awards Moravcsik won a Humboldt Prize