In his writings and his career Gregory of Nyssa assumes many roles. He is a Christian Platonist, a spiritual guide for ascetics and those seeking the vision of God, as well as one of those who shaped the Trinitarian doctrine of God espoused at Constantinople in 381. But he is also a popular preacher and, paradoxically, someone unafraid of deeper speculations regarding the meaning of the Christian ideal. The translations in Part One illustrate these various concerns, but are not a sufficient basis for the thesis of Part Two, one that attempts to answer the question of how to describe the...