Robert A. Segal is professor of Theories of Religion at the University of Lancaster, U.K. He is the author of "The Poimandres as Myth, Religion and the Social Sciences, Explaining and Interpreting Religion", and "Theorizing about Myth", and editor of "The Gnostic Jung, The Allure of Gnosticism", and "The Myth and Ritual Theory". He is at work on an intellectual biography of William Robertson Smith.