Authored many books on the philosophies developed by Plato and Socrates.
He received his Ph.D. from Harvard University in 1931 and also received a Guggenheim Fellowship on two separate occasions.
He taught many future notables, such as Terence Irwin, Paul Woodruff, and Alexander Nehamas.
He was born in Istanbul to a Greek father and a Scottish mother.
He and author Daniel Pipes both matriculated from Harvard University.