Charles L. Griswold is Borden Parker Bowne Professor of Philosophy at Boston University. Among his books are Forgiveness: A Philosophical Exploration (Cambridge University Press 2007), Adam Smith and the Virtues of Enlightenment (Cambridge University Press 1999), Self-knowledge in Plato's Phaedrus (1986) and an edited volume, Platonic Writings, Platonic Readings (1988). He also serves on the editorial advisory boards of Ancient Philosophy, Theoria and the International Journal of the Classical Tradition. David Konstan is Professor of Classics at New York University and Emeritus Professor of Classics and Comparative Literature at Brown University. His most recent books include Forgiveness: The Origins of a Moral Idea (Cambridge University Press 2010) and 'A Life Worthy of the Gods': The Materialist Psychology of Epicurus (2008). He was president of the American Philological Association in 1999 and serves on the editorial boards of numerous scholarly journals.