This groundbreaking study brings into dialogue for the first time the writings of Julian, the last non-Christian Roman Emperor, and his most outspoken critic, Bishop Gregory of Nazianzus, a central figure of Christianity. Susanna Elm compares these two men not to draw out the obvious contrast between the Church and the Emperor’s neo-Paganism, but rather to find their common intellectual and social grounding. Her insightful analysis, supplemented by her magisterial command of sources,...