Early church father and philosopher Saint Augustine served from 396 as the bishop of Hippo in present-day Algeria and through such writings as the autobiographical Confessions in 397 and the voluminous City of God from 413 to 426 profoundly influenced Christianity, argued against Manichaeism and Donatism, and helped to establish the doctrine of original sin.
An Augustinian follows the principles and doctrines of Saint Augustine.
People also know Aurelius Augustinus in English of Regius (Annaba). From the Africa province of the Roman Empire, people generally consider this Latin theologian of the greatest thinkers of all times. He very developed the west. According to Jerome, a contemporary, Augustine renewed "the ancient Faith."
The Neo-Platonism of Plotinus afterward heavily weighed his years. After conversion and his baptism in 387, Augustine developed his own approach to theology and accommodated a variety of methods and different perspectives. He believed in the indispensable grace to human freedom and framed the concept of just war. When the Western Roman Empire started to disintegrate from the material earth, Augustine developed the concept of the distinct Catholic spirituality in a book of the same name. He thought the medieval worldview. Augustine closely identified with the community that worshiped the Trinity. The Catholics and the Anglican communion revere this preeminent doctor. Many Protestants, especially Calvinists, consider his due teaching on salvation and divine grace of the theology of the Reformation. The Eastern Orthodox also consider him. He carries the additional title of blessed. The Orthodox call him "Blessed Augustine" or "Saint Augustine the Blessed."
The late F.J. Sheed produced, in my view, the greatest translation of St. Augustine's classic spiritual autobiography, The Confessions. Written in 1943, it's not always as easy to read as more modern editions, but I think that Sheed's translation retains a forcefulness that has never been matched.
The most famous and oft-quoted line from The Confessions is Augustine's statement that "our heart is restless until it rests in you," and Sheed himself is responsible for this version.
There's a famous quote, allegedly from Alfred North Whitehead, that all of western philosophy is a series of "footnotes to Plato." In my view, the tradition of Christian philosophy is indeed a series of footnotes to Augustine of Hippo.