of his writings. Gregory of Nissa English translación of writings. Gregory of Nyssa entry from The Internet Encyclopedia of Philosophy Opera Omnia by Migne, Patrologia Graeca with analytical indexes. Schaff's Nicene and Post-Nicene Fathers (online), including the works of St. Gregory "Commentary on Song of Songs; Letter on the Soul; Letter on Ascesis and the Monastic Life', a manuscript from the 14th-century of Gregory of Nyssa's work, translated into Arabic 330s births 395 deaths 4th-century bishops in Roman Anatolia 4th-century Christian mystics 4th-century Christian saints 4th-century Christian theologians 4th-century philosophers Byzantine saints Christian clerical marriage Church Fathers Doctors of the Church Catholic philosophers Christian universalist theologians Saints from Roman Anatolia Cappadocian Greeks People from Niksar Christian abolitionists Anglican saints