Robert J. Daly, S.J., is professor and director of graduate studies in the theology department of Boston College. He is the author, editor, or translator of numerous works including, Origen: Treatise on the Passover and Dialogue with Heraclides and His Fellow Bishops on the Father, the Son, and the Soul, Heinrich Fries's Fundamental Theology, and The Eucharist in the West: History and Theology.