Memorial of Saints Basil the Great and Gregory Nazianzen; Fourth Century Doctors of the Church; they studied in Athens, and began to follow a monastic way of life; as Bishop of Caesarea, St. Basil wrote rules for monks and integrated social programs into monasteries; St. Gregory, Bishop of Constantinople, defended the Church against the Arian conspiracies, clarified the divinity of the Holy Spirit, and presided in the Council of Constantinople; they preached fervently, wrote extensively, and are beloved as the Cappadocian Fathers, along with St. Gregory of Nyssa