
Philosophy of Saint Thomas Aquinas, a Dominican friar and theologian of Italy and the most influential thinker of the medieval period, combined doctrine of Aristotle and elements of Neoplatonism, a system that Plotinus and his successors developed and based on that of Plato, within a context of Christian thought; his works include the Summa contra gentiles (1259-1264) and the Summa theologiae or theologica (1266-1273). Saint Albertus Magnus taught Saint Thomas Aquinas. People ably note this priest, sometimes styled of Aquin or Aquino, as a scholastic. The Roman Catholic tradition honors him as a "doctor of the Church." Aquinas lived at a critical juncture of western culture when the arrival of the Aristotelian corpus in Latin translation reopened the question of the relation between faith and reason, calling into question the modus vivendi that obtained for centuries. This crisis flared just as people founded universities. Thomas after early studies at Montecassino moved to the University of Naples, where he met members of the new Dominican order. At Naples too, Thomas first extended contact with the new learning. He joined the Dominican order and then went north to study with Albertus Magnus, author of a paraphrase of the Aristotelian corpus. Thomas completed his studies at the University of Paris, formed out the monastic schools on the left bank and the cathedral school at Notre Dame. In two stints as a regent master, Thomas defended the mendicant orders and of greater historical importance countered both the interpretations of Averroës of Aristotle and the Franciscan tendency to reject Greek philosophy. The result, a new modus vivendi between faith and philosophy, survived until the rise of the new physics. The Catholic Church over the centuries regularly and consistently reaffirmed the central importance of work of Thomas for understanding its teachings concerning the Christian revelation, and his close textual commentaries on Aristotle represent a cultural resource, now receiving increased recognition.
Series
Books

Aquinas
Basic Works
2014

On Prayer and The Contemplative Life
1914

On Human Nature
1268
Summa Theologiae 50
The One Mediator 3a.16-26
1963

Summa Theologiae 8
Creation, Variety, and Evil: 1a.44-49
1963

Aquinas I
1273

Treatise on Law
1265

The Three Greatest Prayers
Commentaries on the Lord's Prayer, the Hail Mary, and the Apostles' Creed
1990

Summa Theologiae 5
God's Will and Providence 1a.19-26
1963

God's Greatest Gifts
Commentaries on the Commandments and the Sacraments
1996

Summa Theologiae 12
Human Intelligence 1a.84-89
1963
Summa Theologiae 24
The Gifts of the Spirit 1a2ae.68-70
1963

On Kingship
To the King of Cyprus
1265

On Politics and Ethics
1987

Faith, Reason and Theology
1258

Aquinas II
1952

Treatise On the Virtues
1951

Introduction To Saint Thomas Aquinas
1274

The Aquinas Catechism
2000

An Aquinas Reader
1972

On the Principles of Nature
1255

Summa Contra Gentiles
1976

On Faith and Reason
1999
Summa Theologiae
3a. 38 45
1963

An Introduction to the Metaphysics of St. Thomas Aquinas
1953

Truth and the Disputed Questions on Truth
1986

The Summa Theologiae Of St. Thomas Aquinas
Latin-English Edition, Prima Pars, Q. 1-64
2009

On Being and Essence
1256

Aristotle On Interpretation
350

Aquinas's Lenten Meditations
40 days with the Angelic Doctor
2023
Summa Theologiae
7 Father, Son and Holy Ghost
1963

Summa Theologica, Part I (Prima Pars) From the Complete American Edition
1274
Summa Theologiae 41
Virtues of Justice in the Human Community 2a2ae.101-122
1963

Political Writings
1274
Summa Theologiae
3a. 27-30
1963

Summa Theologiae 30
The Gospel of Grace 1a2ae.106-114
1963

Nature and Grace
Selections from the Summa Theologica of Thomas Aquinas
1954

Disputed Questions on the Virtues
1999

The Division and Methods of the Sciences
1953

The Trinity is One God Not Three Gods
524
Summa Theologiae 40
Superstition and Irreverence 2a2ae.92-100
1963

Somme contre les gentils t.3 la providence
1265

The Summa Theologiae of Saint Thomas Aquinas
2010
Summa Theologiae
1a. 12-13
1963

Summa Theologica, Part II-II (Secunda Secundae) Translated by Fathers of the English Dominican Province
1273

Commentary on Aristotle's Politics
2007

Suma Teológica - Vol. 2 - Ia IIae
2016

My Way of Life
1952

Commentary on the Gospel of St. Matthew
1841

The Political Ideas of St. Thomas Aquinas
1953

Summa Theologica
1274

Basic Writings of Saint Thomas Aquinas, Volume One
1945

Aquinas's Shorter Summa
1273

Über sittliches Handeln
1963

On the Eternity of the World
1271
Summa Theologiae 59
Holy Communion 3a.79-83
1963

Summa Contra Gentiles
Book 3: Providence, Part II
1991

Saint Thomas Aquinas Collection
2008

Summa Contra Gentiles
Book One: God
1259

Meditations For Lent
1937

Summa Theologiae I, 1-49
2012
Summa Theologiae
1a. 90-102 , vol 13, Man Made to God's Image (Summa Theologiae)
1963

Summa Contra Gentiles
Book Two: Creation
1992

Treatise on Happiness
1991

An Exposition of the 'on the Hebdomads' of Boethius
2001

Summa Contra Gentiles
Book 3: Providence Part I
1975

On Evil
2003

The Cardinal Virtues
Prudence, Justice, Fortitude, and Temperance
1274
Summa Theologiae
1963

Summa Theologica, Part III (Tertia Pars) From the Complete American Edition
1273

Commentary on Aristotle's Posterior Analytics
2007

The Ways of God
1995

Summa Theologiae Index
2006
Summa Theologiae 37
Justice 2a2ae 57-62
1963

The Aquinas Prayer Book
2000

Summa Theologiae 36
Prudence 2a2ae.47-56
1963

Summa Theologica, Part I-II (Pars Prima Secundae) From the Complete American Edition
1274

Summa Theologica Volume 1
1274
Summa Theologiae 3a.31-37
Childhood of Christ v. 52
1963

Catena Aurea
Commentary on the Four Gospels, Collected Out of the Works of the Fathers, Volume IV Part 2, Gospel of St. John
1980

Selected Philosophical Writings
1993

Pocket Aquinas
1960
Summa Theologiae
The Pastoral and Religious Lives: 2a2ae. 183-189
1963

Selected Writings
1939

Holy Teaching
Introducing the Summa Theologiae of St. Thomas Aquinas
2005

Basic Writings of Saint Thomas Aquinas, Volume Two
1997
Summa Theologiae
Volume 17, Psychology of Human Acts: 1a2ae. 6-17
1963

On Law, Morality and Politics, 2nd Edition
1274
Summa Theologiae 15
The World Order 1a.110-119
1963