Question: Which of the studies Phillip Cary concentrated on at Eastern University was an early North African Christian theologian and philosopher whose writings influenced the development of Western Christianity and Western philosophy?

full_context: Document 1: Second Council of Cirta: The Second Council of Cirta was a conference of Bishops, held in June 412, at Cirta in Roman North Africa, and was debated between the Catholic lead by Augustine and the Donatists lead by Silvanus of Numidia. It is notable as the origin of the Catholic Dogma claim that "There is no salvation outside the Catholic Church".
Document 2: Phillip Cary: Phillip Cary (born June 10, 1958) is a philosophy professor at Eastern University with a concentration on Augustine of Hippo. He received his Ph.D. from Yale Divinity School under Nicholas Wolterstorff. He has written a number of books, including three published by Oxford University Press. Additionally, he has provided lectures on the history of Christian theology as well as on major figures in ecclesiastical history for The Teaching Company.
Document 3: Augustinians: The term Augustinians, named after Augustine of Hippo (354–430), applies to two distinct types of Catholic religious orders and some Anglican religious orders. Within Anglicanism the Rule of St. Augustine is followed only by women, who form several different communities of Augustinian nuns in the Anglican Communion. Within Roman Catholicism Augustinians may be members of either one of two separate and distinct types of Order:
Document 4: Pseudo-Ambrose: Pseudo-Ambrose is the name given by Erasmus to refer to the author of a volume containing the first complete Latin commentary on the Pauline epistles. Alexander Souter has established that the same author wrote the "Quaestiones Veteris et Novi Testament", which had long been attributed to Saint Augustine. Other works ascribed to the same author, less definitely, ore the "Lex Dei sive Mosaicarum et Romanorum legum collatio," "De bello judaico", and the fragmentary "Contra Arianos" sometimes ascribed to the pseudo-Hilary and the "sermo 246" of pseudo-Augustine. They mention Simon Magus.
Document 5: Van A. Harvey: Van A. Harvey is George Edwin Burnell Professor of Religious Studies (Emeritus) at Stanford University. Born in Hankow, China, he served in the U.S. Navy (1943–46), and was awarded a BA in Philosophy from Occidental College (1948, Phi Beta Kappa). After attending Princeton Theological Seminary for one year, he received a B.D. from Yale Divinity School in 1951 and a PhD. from Yale University in 1957 in post-Enlightenment religious thought. His thesis was entitled "Myth, Faith, and History" and his thesis supervisor was H. Richard Niebuhr.
Document 6: De finibus bonorum et malorum: De finibus bonorum et malorum ("On the ends of good and evil") is a philosophical work by the Roman orator, politician and philosopher Marcus Tullius Cicero. It consists of five books, in which Cicero explains the philosophical views of Epicureanism, Stoicism, and the Platonism of Antiochus of Ascalon. The book was developed in the summer of the year 45 BC within about one and a half months. Together with the "Tusculanae Quaestiones" written shortly afterwards, "De finibus" is the most extensive philosophical work of Cicero. It is dedicated to Marcus Junius Brutus. Lorem ipsum, the common placeholder text used in graphic design work, is derived from parts of the first book's discourse on hedonism.
Document 7: Thomas Aquinas: Saint Thomas Aquinas {'1': ", '2': ", '3': 'OP', '4': "} ( ; Italian: "Tommaso d'Aquino" , 'Thomas of Aquino' ; 1225 – 7 March 1274) was an Italian Dominican friar, Catholic priest, and Doctor of the Church. He was an immensely influential philosopher, theologian, and jurist in the tradition of scholasticism, within which he is also known as the Doctor Angelicus and the Doctor Communis. The name "Aquinas" identifies his ancestral origins in the county of Aquino in present-day Lazio.
Document 8: Alan M. Olson: Alan M. Olson is a Professor of the Philosophy of Religion at Boston University. He received his degrees from Saint Olaf College (BA, History and Philosophy), Luther Theological Seminary (MDiv, Theology), Nashotah House, where he studied with Arthur Anton Vogel, and Boston University (PhD) where he studied with Peter A. Bertocci, Erazim Kohak, Harold H. Oliver and John N. Findlay. He served as Chairman of the Religion Department at Boston University, 1980–1987, and Chairman of the Philosophy Department, ad interim, 1987-1989. During the 1970s he was Program Coordinator of the Boston University Institute for Philosophy and Religion; and was Executive Director of the Twentieth World Congress of Philosophy in Boston, 1998. He was a Senior Fulbright Research Fellow at Karls-Eberhart Universität, Tübingen, Germany, in 1986, where he studied with Klaus Hartmann; and a Senior Fulbright Research Fellow and Visiting Fellow at the Institut für die Wissenschaften vom Menschen, Vienna, Austria, in 1995, where he worked with Krzysztof Michalski. He served on the Board of Officers of the American Philosophical Association, 2000–2003; and is past president of the Karl Jaspers Society of North America. He delivered the Jaspers Lectures at Oxford in 1989; and is currently co-editor, with Helmut Wautischer, of the philosophical journal, Existenz. He lives on Cape Cod with his wife, Janet L. Olson, Professor Emerita, College of Fine Arts, Boston University. They have two daughters, Maren Kirsten, Sonja Astrid, and one grandson, Søren.
Document 9: Paul Boghossian: Paul Boghossian is Silver professor of philosophy at New York University in the NYU Department of Philosophy, where he was Chair of the Department for ten years (1994–2004) and responsible for building it into one of the top philosophy programs in the world. His research interests include epistemology, the philosophy of mind, and the philosophy of language. He is Director of the New York Institute of Philosophy and Distinguished Research Professor of Philosophy at the University of Birmingham.
Document 10: D. Stephen Long: Duane Stephen Long, also known as D. Stephen Long, (PhD Duke University) is the Cary M. Maguire University Professor of Ethics at Southern Methodist University. Previously, Long was Professor of Systematic Theology at Marquette University. He specializes in systematic theology, Christian ethics, and political theology. His books include "The Divine Economy: Theology and Market", which details a Christian approach to economics based in the thought of Radical Orthodoxy, "The Goodness of God: Theology, Church and Social Order" and "Christian Ethics: A Very Short Introduction".
Document 11: Augustine of Canterbury: Augustine of Canterbury (born first third of the 6th century – died probably 26 May 604) was a Catholic Benedictine monk who became the first Archbishop of Canterbury in the year 597. He is considered the "Apostle to the English" and a founder of the Catholic Church in England.
Document 12: John Rist: John Michael Rist (born 1936), a Fellow of the Royal Society of Canada, is a British scholar of ancient philosophy, classics, and early Christian philosophy and theology, known mainly for his contributions to the history of metaphysics and ethics. He is the author of monographs on Plato, Aristotle, the Stoics, Epicurus, Plotinus, the dating of the Gospels, and Augustine. Rist is Professor of Classics Emeritus at the University of Toronto, part-time Visiting Professor at the Institutum Patristicum Augustinianum in Rome, holds the Father Kurt Pritzl, O.P., Chair in Philosophy at the Catholic University of America in Washington, D.C., and is a life member of Clare Hall, Cambridge University. During his lengthy academic career he has also been Regius Professor of Classics at the University of Aberdeen (1983-1996), and the Lady David Visiting Professor in Philosophy at the Hebrew University in Jerusalem (1995).
Document 13: Society of Christian Philosophers: The Society of Christian Philosophers was founded in 1978. Past Presidents include William Alston, Robert Merrihew Adams, Alvin Plantinga, Marilyn McCord Adams, George I. Mavrodes, Peter van Inwagen, Nicholas Wolterstorff, Eleonore Stump, C. Stephen Evans, Robert Audi, and Linda Zagzebski. Michael C. Rea of the University of Notre Dame is currently President of SCP, Christina van Dyke of Calvin College is Executive Director, and David Billings of Calvin College is Treasurer.
Document 14: Richard Polt: Richard F. H. Polt is a professor of philosophy at Xavier University in Cincinnati, Ohio. He has written about and translated works by Martin Heidegger. Polt is a typewriter enthusiast active on the Typosphere and a former editor of the quarterly ETCetera publication about manual typewriters. He is the author of three books, and he recently contributed to the documentary "" that features Tom Hanks.
Document 15: Augustine of Hippo: Augustine of Hippo ( or ; 13 November 354 – 28 August 430) was an early North African Christian theologian and philosopher whose writings influenced the development of Western Christianity and Western philosophy. He was the bishop of Hippo Regius in north Africa and is viewed as one of the most important Church Fathers in Western Christianity for his writings in the Patristic Era. Among his most important works are "The City of God" and "Confessions."
ground_truth: Augustine of Hippo