Aurelius Augustinus (RIM)

Augustine of Hippo (Latin: Aurelius Augustinus Hipponensis; November 13, 354 – August 28, 430), also known as St. Augustine, St. Austin,[4] or St. Augoustinos, was bishop of Hippo Regius (present-day Annaba, Algeria). He was a Latin philosopher and theologian from the Africa Province of the Roman Empire and is generally considered as one of the greatest Christian thinkers of all times. His writings were very influential in the development of Western Christianity.

According to his contemporary Jerome, Augustine "established anew the ancient Faith." In his early years he was heavily influenced by Manichaeism and afterward by the Neo-Platonism of Plotinus. After his conversion to Christianity and his baptism in 387, Augustine developed his own approach to philosophy and theology, accommodating a variety of methods and different perspectives. He believed that the grace of Christ was indispensable to human freedom, and he framed the concepts of original sin and just war.

When the Western Roman Empire was starting to disintegrate, Augustine developed the concept of the Catholic Church as a spiritual City of God (in a book of the same name), distinct from the material Earthly City. His thoughts profoundly influenced the medieval worldview. Augustine's City of God was closely identified with the Church, the community that worshiped the Trinity.

In the Catholic Church and the Anglican Communion, he is a saint and pre-eminent Doctor of the Church, and the patron of the Augustinians; his memorial is celebrated 28 August, the day of his death. He is the patron saint of brewers, printers, theologians, the alleviation of sore eyes, and a number of cities and dioceses. Many Protestants, especially Calvinists, consider him to be one of the theological fathers of the Protestant Reformation due to his teaching on salvation and divine grace. In the Eastern Orthodox Church he is also considered a saint, his feast day being celebrated on 15 June. He carries the additional title of Blessed. Among the Orthodox, he is called "Blessed Augustine" or "St. Augustine the Blessed".

Books: 
On Christian Doctrine (Latin: De doctrina Christiana, 397-426)
Confessions (Confessiones, 397-398)
The City of God (De civitate Dei, begun c. 413, finished 426)
On the Trinity (De trinitate, 400-416)
Enchiridion (Enchiridion ad Laurentium, seu de fide, spe et caritate)
Retractions (Retractationes): At the end of his life (c. 426-428) Augustine revisited his previous works in chronological order. The English translation of the title has led some to assume that at the end of his career, Augustine retreated from his earlier theological positions. In fact, the Latin title literally means 're-treatments" (not "Retractions") and though in this work Augustine suggested what he would have said differently, it provides little in the way of actual "retraction." It does, however, give the reader a rare picture of the development of a writer and his final thoughts.
The Literal Meaning of Genesis (De Genesi ad litteram)
On Free Choice of the Will (De libero arbitrio)
On the Catechising of the Uninstructed (De catechizandis rudibus)
On Faith and the Creed (De fide et symbolo)
Concerning Faith of Things Not Seen (De fide rerum invisibilium)
On the Profit of Believing (De utilitate credendi)
On the Creed: A Sermon to Catechumens (De symbolo ad catechumenos)
On Continence (De continentia)
On the teacher (De magistro)
On the Good of Marriage (De bono coniugali)
On Holy Virginity (De sancta virginitate)
On the Good of Widowhood (De bono viduitatis)
On Lying (De mendacio)
To Consentius: Against Lying (Contra mendacium [ad Consentium])
To Quodvultdeus, On Heresies (De haeresibus ad Quodvultdeum)
On the Work of Monks (De opere monachorum)
On Patience (De patientia)
On Care to be Had For the Dead (De cura pro mortuis gerenda)
On the Morals of the Catholic Church and on the Morals of the Manichaeans (De moribus ecclesiae catholicae et de moribus Manichaeorum)
On Two Souls, Against the Manichaeans (De duabus animabus [contra Manichaeos])
Acts or Disputation Against Fortunatus the Manichaean ([Acta] contra Fortunatum [Manichaeum])
Against the Epistle of Manichaeus Called Fundamental (Contra epistulam Manichaei quam vocant fundamenti)
Reply to Faustus the Manichaean (Contra Faustum [Manichaeum])
Concerning the Nature of Good, Against the Manichaeans (De natura boni contra Manichaeos)
On Baptism, Against the Donatists (De baptismo [contra Donatistas])
The Correction of the Donatists (De correctione Donatistarum)
On Merits and Remission of Sin, and Infant Baptism (De peccatorum meritis et remissione et de baptismo parvulorum)
On the Spirit and the Letter (De spiritu et littera)
On Nature and Grace (De natura et gratia)
On Man's Perfection in Righteousness (De perfectione iustitiae hominis)
On the Proceedings of Pelagius (De gestis Pelagii)
On the Grace of Christ, and on Original Sin (De gratia Christi et de peccato originali)
On Marriage and Concupiscence (De nuptiis et concupiscientia)
On the Nature of the Soul and its Origin (De natura et origine animae)
Against Two Letters of the Pelagians (Contra duas epistulas Pelagianorum)
On Grace and Free Will (De gratia et libero arbitrio)
On Rebuke and Grace (De correptione et gratia)
On the Predestination of the Saints (De praedestinatione sanctorum)
On the Gift of Perseverance (De dono perseverantiae)
Our Lord's Sermon on the Mount (De sermone Domini in monte)
On the Harmony of the Evangelists (De consensu evangelistarum)
Treatises on the Gospel of John (In Iohannis evangelium tractatus)
Soliloquies (Soliloquiorum libri duo)
Enarrations, or Expositions, on the Psalms (Enarrationes in Psalmos)
On the Immortality of the Soul (De immortalitate animae)
Answer to the Letters of Petilian, Bishop of Cirta (Contra litteras Petiliani)
Against the Academics (Contra Academicos)
Sermons, among which a series on selected lessons of the New Testament
Homilies, among which a series on the First Epistle of John

Source: http://en.wikipedia.org/wiki/Augustine_of_Hippo