Plato (c.427-347 BC) stands with Socrates and Aristotle as one of the shapers of the whole intellectual tradition of the West. He founded the Athenian Academy, the first permanent institution devoted to philosophical research and teaching, and the prototype of all Western universities. Hugh Tredennick was Dean of the Faculty of Arts at London University. Harold Tarrant is Senior Lecturer in Classics at the Univesity of Sydney.