Arthur Darby Nock was an English classicist and theologian, regarded as a leading scholar in the history of religion. He was a professor at Harvard University from 1930 until his death.

André-Jean Festugière O.P. was a French Dominican friar, philosopher, philologist, and expert on Neoplatonism, and in particular the works of Proclus. He is also notable for his translation of the wor