Johan Leemans, Ph. D (2001), KU Leuven, is Professor of Christianity in Late Antiquity at the Faculty of Theology and Religious Studies at the same university. He has published widely on late antique sermons, martyrdom, the Cappadocian Fathers and patristic exegesis. Geert Roskam, Ph.D. (2001), KU Leuven, is Professor of Greek Literature at that university. He has published several monographs and numerous articles on Hellenistic philosophy (esp. Epicureanism) and later Platonism (esp. Plutarch).Peter Van Deun, Ph.D. (1989), KU Leuven, is full professor of Byzantine Studies at that university. He has published widely on Patristic and Byzantine literature, esp. on Maximus the Confessor, Metrophanes of Smyrna and the genre of spiritual anthologies.