Greek paideia included within it not just the transmission of information but also training in virtue, by which the student would live wisely and well. How, though, do we teach virtue in a classical Christian school? Drawing on the wisdom of the medieval educator Hugh of St. Victor, this talk explores the powerful connection that exists between the discipline of the body and moral transformation. Key topics include the use of moral exemplars, training in forms and habits, the role of athletics in a school, and teaching boys and girls as distinct groups.