Thomas Aquinas

"Aquinas" redirects here. For other uses, see Aquinas (disambiguation).

Thomas Aquinas
Occupation	priest, philosopher, theologian
Genre	Scholasticism, Thomism
Subject	Metaphysics, Logic, Mind, Epistemology, Ethics, Politics
Notable works	Summa Theologica

Saint Thomas Aquinas, O.P. (also Thomas of Aquin or Aquino; born ca. 1225; died 7 March 1274) was a priest of the Roman Catholic Church in the Dominican Order from Italy, and an immensely influential philosopher and theologian in the tradition of scholasticism, known as Doctor Angelicus and Doctor Communis. He is frequently referred to as Thomas because "Aquinas" refers to his residence rather than his surname. He was the foremost classical proponent of natural theology, and the father of the Thomistic school of philosophy and theology. His influence on Western thought is considerable, and much of modern philosophy was conceived as a reaction against, or as an agreement with, his ideas, particularly in the areas of ethics, natural law and political theory.

Aquinas is held in the Catholic Church to be the model teacher for those studying for the priesthood. The works for which he is best-known are the Summa Theologica and the Summa Contra Gentiles. One of the 33 Doctors of the Church, he is considered by many Catholics to be the Church's greatest theologian and philosopher.

Biography

Early years and desire to become a Dominican (1225-1244)

Aquinas was born c. 1225 out of his father Count Landulf of Aquino's castle of Roccasecca in the Kingdom of Sicily, in the present-day Lazio. Through his mother, Theodora Countess of Theate, Aquinas was related to the Hohenstaufen dynasty of Holy Roman emperors. Landulf's brother Sinibald was abbot of the original Benedictine abbey at Monte Cassino. While the rest of the Aquinas sons pursued a military career, the family intended for Aquinas to follow his uncle into the abbacy; this would have been a normal career path for a younger son of southern Italian nobility.

At the age of five, Aquinas began his early education at Monte Cassino but after the military conflict that broke out between the Emperor Frederick II and Pope Gregory IX spilled into the abbey in early 1239, Landulf and Theodora had Aquinas enrolled at the studium generale (university) recently established by Frederick in Naples. It was here that Aquinas was probably introduced to Aristotle, Averroes and Maimonides, all of whom would influence his theological philosophy. It was also during his study at Naples that Aquinas came under the influence of John of St. Julian, a Dominican preacher in Naples, who was part of the active effort by the Dominican order to recruit devout followers. Here his teacher in arithmetic, geometry, astronomy, and music was Petrus de Ibernia.

The Castle of Monte San Giovanni Campano

At age nineteen, Thomas resolved to join the Dominican Order. Aquinas' change of heart did not please his family, who had expected him to become a Benedictine monk. In an attempt to prevent Theodora's interference in Aquinas' choice, the Dominicans arranged for Aquinas to be removed to Rome, and from Rome, sent to Paris. On his way to Rome, his brothers, per Theodora's instructions, seized him as he was drinking from a spring and took him back to his parents at the castle of Monte San Giovanni Campano. He was held for two years in the family homes at Monte San Giovanni and Roccasecca in an attempt to prevent him from assuming the Dominican habit and to push him into renouncing his new aspiration. Political concerns prevented the Pope from ordering Aquinas' release, extending the detention, a detention which Aquinas spent tutoring his sisters and communicating with members of the Dominican Order. Family members became desperate to dissuade Aquinas, who remained determined to join the Dominicans. At one point, two of his brothers hired a prostitute to seduce him, but he drove her away, wielding a burning stick. According to legend, that night two angels appeared to him as he slept and strengthened his determination to remain celibate. By 1244, seeing that all of her attempts to dissuade Aquinas had failed, Theodora sought to save face, arranging for Aquinas to escape at night through his window. In her mind, a secret escape from detention was less damaging than an open surrender to the Dominicans. Aquinas was sent first to Naples and then to Rome to meet Johannes von Wildeshausen, the Master General of the Dominican Order.

Paris, Cologne, Albert Magnus, and First Paris Regency (1245-1259)

In 1245, Aquinas was sent to study at the University of Paris' Faculty of Arts where he most likely met Dominican scholar Albertus Magnus, then the Chair of Theology at the College of St. James in Paris. When Albertus was sent by his superiors to teach at the new studium generale at Cologne in 1248, Aquinas followed him, declining Pope Innocent IV's offer to appoint him abbot of Monte Cassino as a Dominican. Albertus then appointed the reluctant Aquinas magister studentium. After failing in his first theological disputation, Albertus prophetically exclaimed: "We call him the dumb ox, but in his teaching he will one day produce such a bellowing that it will be heard throughout the world."

Aquinas taught in Cologne as an apprentice professor (baccalaureus biblicus), instructing students on the books of the Old Testament and writing Expositio super Isaiam ad litteram (Literal Commentary on Isaiah), Postilla super Ieremiam (Commentary on Jeremiah) and Postilla super Threnos (Commentary on Lamentations). Then in 1252 he returned to Paris to study for the master's degree in theology. He lectured on the Bible as an apprentice professor, and upon becoming a baccalaureus Sententiarum (bachelor of the Sentences) devoted his final three years of study to commenting on Peter Lombard's Sentences. In the first of his four theological syntheses, Aquinas composed a massive commentary on the Sentences entitled Scriptum super libros Sententiarium (Commentary on the Sentences). Aside from his masters writings, he wrote De ente et essentia (On Being and Essence) for his fellow Dominicans in Paris.

In spring of 1256, Aquinas was appointed regent master in theology at Paris and one of his first works upon assuming this office was Contra impugnantes Dei cultum et religionem (Against Those Who Assail the Worship of God and Religion), defending the mendicant orders which had come under attack by William of Saint-Amour. During his tenure from 1256 to 1259, Aquinas wrote numerous works, including: Questiones disputatae de veritate (Disputed Questions on Truth), a collection of twenty-nine disputed questions on aspects of faith and the human condition prepared for the public university debates he presided over on Lent and Advent; Quaestiones quodlibetales (Quodlibetal Questions), a collection of his responses to questions posed to him by the academic audience; and both Expositio super librum Boethii De trinitate (Commentary on Boethius's De trinitate) and Expositio super librum Boethii De hebdomadibus (Commentary on Boethius's De hebdomadibus), commentaries on the works of 6th century philosopher Anicius Manlius Severinus Boethius. By the end of his regency, Aquinas was working on one of his most famous works, Summa contra Gentiles.

Saint Thomas Aquinas
St. Thomas Aquinas, by Fra Angelico
Doctor of the Church
Born	c. 1225 Roccasecca, in Lazio, Italy
Died	7 March 1274(1274-03-07) (aged 49) Fossanuova Abbey, Italy
Venerated in	Roman Catholic Church
Canonized	18 July 1323, Avignon, France by Pope John XXII
Major shrine	Church of the Jacobins, Toulouse, France
Feast	28 January (new), 7 March (old)
Attributes	The Summa Theologica, a model church, the Sun
Patronage	All Catholic educational institutions

Naples, Orvieto, Rome, and Santa Sabina (1259-1269)

Around 1259, Aquinas returned to Naples where he lived until he arrived in Orvieto around September 1261. In Orvieto, he was appointed conventual lector, in charge of the education of friars unable to attend a studium generale. During his stay in Orvieto, Aquinas completed his Summa contra Gentiles, and wrote the Catena Aurea (The Golden Chain). He also wrote the liturgy for the newly created feast of Corpus Christi and produced works for Pope Urban IV concerning Greek Orthodox theology, e.g. Contra errores graecorum. In 1265 he was ordered by the Dominicans to establish a studium for the Order in Rome at the priory of Santa Sabina, which he did from 1265 until he was called back to Paris in 1268. It was in Rome that Aquinas began his most famous work, Summa Theologica, and wrote a variety of other works like his unfinished Compendium Theologiae and Responsio ad fr. Ioannem Vercellensem de articulis 108 sumptis ex opere Petri de Tarentasia (Reply to Brother John of Vercelli Regarding 108 Articles Drawn from the Work of Peter of Tarentaise). In his position as head of the studium, conducted a series of important disputations on the power of God, which he compiled into his De potentia.

The Quarrelsome Second Paris Regency (1269-1272)

In 1268 the Dominican Order assigned Aquinas to be regent master at the University of Paris for a second time, a position he held until the spring of 1272. Part of the reason for this sudden reassignment appears to have arisen from the rise of "Averroism" or "radical Aristotelianism" in the universities. In response to these perceived evils, Aquinas wrote two works, one of them being De unitate intellectus, contra Averroistas (On the Unicity of Intellect, against the Averroists) in which he blasts Averroism as incompatible with Christian doctrine. During his second regency, he finished the second part of the Summa and wrote De virtutibus and De aeternitati mundi, the latter of which dealt with controversial Averroist and Aristotelian beginninglessness of the universe.

Disputes with some important Franciscans such as Bonaventure and John Peckham conspired to make his second regency much more difficult and troubled than the first. A year before Aquinas re-assumed the regency at the 1266-67 Paris disputations, Franciscan master William of Baglione accused Aquinas of encouraging Averroists, calling him the "blind leader of the blind". Aquinas called these individuals the murmurantes (Grumblers). In reality, Aquinas was deeply disturbed by the spread of Averroism and was angered when he discovered Siger of Brabant teaching Averroistic interpretations of Aristotle to Parisian students.

On 10 December 1270, the bishop of Paris, Etienne Tempier, issued an edict condemning thirteen Aristotlelian and Averroistic propositions as heretical and excommunicating anyone who continued to support them. Many in the ecclesiastical community, the so-called Augustinians, were fearful that this introduction of Aristotelianism and the more extreme Averroism might somehow contaminate the purity of the Christian faith. In what appears to be an attempt to counteract the growing fear of Aristotelian thought, Aquinas conducted a series of disputations between 1270 and 1272: De virtutibus in communi (On Virtues in General), De virtutibus cardinalibus (On Cardinal Virtues) De spe (On Hope).

Final days and "Straw" (1272-1274)

In 1272 Aquinas took leave from the University of Paris when the Dominicans from his home province called upon him to establish a studium generale wherever he liked and staff it as he pleased. He chose to establish the institution in Naples, and moved there to take his post as regent master. He took his time at Naples to work on the third part of the Summa while giving lectures on various religious topics. On 6 December 1273 Aquinas was celebrating the Mass of St Nicholas when he unexpectedly abandoned his routine and refused to dictate to his socius Reginald of Piperno. When Reginald begged him to get back to work, Aquinas replied: "Reginald, I cannot, because all that I have written seems like straw to me." (mihi videtur ut palea). What exactly triggered Aquinas's experience is not known. Some have posited that he suffered a stroke, while others point to a physical or nervous breakdown. Some think it was a combination of all three—a complete collapse. More commonly, it is believed he had some kind of spiritual experience which caused him to doubt the efficacy of logic and reason to understand God. After taking to his bed, he did recover some strength.

Looking to find a way to reunite the Eastern and Western churches, Pope Gregory X convened the Second Council of Lyon to be held on 1 May 1274 and summoned Aquinas to attend. At the meeting, Aquinas' work for Pope Urban IV concerning the Greeks, Contra errores graecorum, was to be presented. On his way to the Council, riding on a donkey along the Appian Way, he struck his head on the branch of a fallen tree and became seriously ill again. He was then quickly escorted to Monte Cassino to convalesce. After resting for a while, he set out again, but stopped at the Cistercian Fossanova Abbey after again falling ill. The monks nursed him for several days, and as he received his last rites he prayed: "I receive Thee, ransom of my soul. For love of Thee have I studied and kept vigil, toiled, preached and taught..." He died on 7 March 1274 while giving commentary on the Song of Songs.

Condemnation of 1277 and Subsequent Canonization

In 1277, the same bishop of France, Etienne Tempier, who had issued the condemnation of 1270 issued another, more extensive condemnation. This new condemnation was aimed to clarify that God's absolute power transcended any principles of logic that Aristotle or Averroes might place on it. More specifically, it contained a list of 219 propositions that the bishop had determined to violate the omnipotence of God, and included in this list were twenty Thomistic propositions. Their inclusion badly damaged Aquinas' reputation for many years.

In The Divine Comedy, Dante sees the glorified spirit of Aquinas in the Heaven of the Sun with the other great exemplars of religious wisdom. Dante also asserts that Aquinas died by poisoning, on the order of Charles of Anjou Villani (ix. 218) cites this belief, and the Anonimo Fiorentino describes the crime and its motive. But the historian Ludovico Antonio Muratori reproduces the account made by one of Aquinas' friends, and this version of the story gives no hint of foul play.

Fifty years after the death of Aquinas, Pope John XXII, seated in Avignon, pronounced Thomas a saint. Aquinas' theology had begun its rise to prestige. Two centuries later, in 1567, Pope Pius V ranked the festival of St. Thomas Aquinas with those of the four great Latin fathers: Ambrose, Augustine of Hippo, Jerome, and Gregory. However, in the same period the Council of Trent would still turn to Duns Scotus before Thomas, as a source of arguments in defence of the Church. Even though Duns Scotus was consulted at the Council of Trent, Aquinas still maintained the honor of having his Summa Theologica placed on the altar alongside the Bible and the Decretals. It was not until the First Vatican Council that Thomas was elevated to the preeminent status of "teacher of the church".

In his encyclical of 4 August 1879, Pope Leo XIII stated that Aquinas' theology was a definitive exposition of Catholic doctrine. Thus, he directed the clergy to take the teachings of Aquinas as the basis of their theological positions. Leo XIII also decreed that all Catholic seminaries and universities must teach Aquinas' doctrines, and where Aquinas did not speak on a topic, the teachers were "urged to teach conclusions that were reconcilable with his thinking." In 1880, Aquinas was declared patron of all Catholic educational establishments.

In a monastery at Naples, near the cathedral of St. Januarius, a cell in which he supposedly lived is still shown to visitors. His remains were placed in the Church of the Jacobins in Toulouse in 1369. Between 1789 and 1974, they were held in Basilique de Saint-Sernin, Toulouse. In 1974, they were returned to the Church of the Jacobins, where they have remained ever since.

In the Roman Catholic Church, Aquinas has two feast days. In the Roman Catholic calendar of saints, he is remembered with a memorial on 28 January, the date of the translation of his relics to Toulouse. The General Roman Calendar of 1962 commemorates Aquinas on 7 March, his day of death.

Philosophy

"Nihil est in intellectu quod non fuerit prius in sensu." (Nothing is in the intellect that was not first in the senses) — Aquinas's peripatetic axiom

The philosophy of Aquinas has exerted enormous influence on subsequent Christian theology, especially that of the Roman Catholic Church, extending to Western philosophy in general, where he stands as a vehicle and modifier of Aristotelianism, which he fused with the thought of Augustine. Philosophically, his most important and enduring work is the Summa Theologica, in which he expounds his systematic theology of the quinquae viae.

Epistemology

Aquinas believed "that for the knowledge of any truth whatsoever man needs divine help, that the intellect may be moved by God to its act." However, he believed that human beings have the natural capacity to know many things without special divine revelation, even though such revelation occurs from time to time, "especially in regard to [topics of] faith." Aquinas was also an Aristotelian and an empiricist. He substantially influenced these two streams of Western thought.

Revelation

Aquinas believed that truth is known through reason (natural revelation) and faith (supernatural revelation). Supernatural revelation has its origin in the inspiration of the Holy Spirit and is made available through the teaching of the prophets, summed up in Holy Scripture, and transmitted by the Magisterium, the sum of which is called "Tradition". Natural revelation is the truth available to all people through their human nature; certain truths all men can attain from correct human reasoning. For example, he felt this applied to rational proofs for the existence of God.

Though one may deduce the existence of God and his Attributes (One, Truth, Good, Power, Knowledge) through reason, certain specifics may be known only through special revelation (such as the Trinity). In Aquinas' view, special revelation is equivalent to the revelation of God in Jesus Christ. The major theological components of Christianity, such as the Trinity and the Incarnation, are revealed in the teachings of the Church and the Scriptures and may not otherwise be deduced.

Supernatural revelation (faith) and natural revelation (reason) are complementary rather than contradictory in nature, for they pertain to the same unity: truth.

Analogy

An important element in Aquinas's philosophy is his theory of analogy. Aquinas noted three forms of descriptive language: univocal, analogical, and equivocal.

• Univocality is the use of a descriptor in the same sense when applied to two objects or groups of objects. For instance, when the word "milk" is applied both to milk produced by cows and by any other female mammal.
• Analogy, Aquinas maintained, occurs when a descriptor changes some but not all of its meaning. For example, the word "healthy" is analogical in that it applies both to a healthy person or animal (those that enjoy of good health) and to some food or drink (if it is good for the health). Analogy is necessary when talking about God, for some of the aspects of the divine nature are hidden (Deus absconditus) and others revealed (Deus revelatus) to finite human minds. In Aquinas's mind, we can know about God through his creation (general revelation), but only in an analogous manner. We can speak of God's goodness only by understanding that goodness as applied to humans is similar to, but not identical with, the goodness of God.
• Equivocation is the complete change in meaning of the descriptor and is an informal fallacy. For example, when the word "bank" is applied to river banks and financial banks. Modern philosophers talk of ambiguity.

Ethics

Aquinas's ethics are based on the concept of "first principles of action." In his Summa Theologica, he wrote:

Virtue denotes a certain perfection of a power. Now a thing's perfection is considered chiefly in regard to its end. But the end of power is act. Wherefore power is said to be perfect, according as it is determinate to its act.

Aquinas defined the four cardinal virtues as prudence, temperance, justice, and fortitude. The cardinal virtues are natural and revealed in nature, and they are binding on everyone. There are, however, three theological virtues: faith, hope, and charity. These are supernatural and are distinct from other virtues in their object, namely, God:

Now the object of the theological virtues is God Himself, Who is the last end of all, as surpassing the knowledge of our reason. On the other hand, the object of the intellectual and moral virtues is something comprehensible to human reason. Wherefore the theological virtues are specifically distinct from the moral and intellectual virtues.

Furthermore, Aquinas distinguished four kinds of law: eternal, natural, human, and divine. Eternal law is the decree of God that governs all creation. Natural law is the human "participation" in the eternal law and is discovered by reason. Natural law, of course, is based on "first principles":

. . . this is the first precept of the law, that good is to be done and promoted, and evil is to be avoided. All other precepts of the natural law are based on this . . .

The desires to live and to procreate are counted by Aquinas among those basic (natural) human values on which all human values are based. However, Aquinas was vehemently opposed to non-procreative sexual activity; not only did this lead him to view masturbation, oral sex, and even coitus interruptus, as being worse than incest and rape, but also he condemned all sexual positions other than the missionary position, on the assumption that they made conception more difficult

Human law is positive law: the natural law applied by governments to societies. Divine law is the specially revealed law in the scriptures.

Aquinas also greatly influenced Catholic understandings of mortal and venial sins.

Aquinas denied that human beings have any duty of charity to animals because they are not persons. Otherwise, it would be unlawful to use them for food. But this does not give us license to be cruel to them, for "cruel habits might carry over into our treatment of human beings."

Aquinas contributed to economic thought as an aspect of ethics and justice. He dealt with the concept of a just price, normally its market price or a regulated price sufficient to cover seller costs of production. He argued it was immoral for sellers to raise their prices simply because buyers were in pressing need for a product.

17th century sculpture of Thomas Aquinas

Theology

Aquinas viewed theology, or the sacred doctrine, as a science, the raw material data of which consists of written scripture and the tradition of the Catholic Church. These sources of data were produced by the self-revelation of God to individuals and groups of people throughout history. Faith and reason, while distinct but related, are the two primary tools for processing the data of theology. Aquinas believed both were necessary - or, rather, that the confluence of both was necessary - for one to obtain true knowledge of God. Aquinas blended Greek philosophy and Christian doctrine by suggesting that rational thinking and the study of nature, like revelation, were valid ways to understand truths pertaining to God. According to Aquinas, God reveals himself through nature, so to study nature is to study God. The ultimate goals of theology, in Aquinas’ mind, are to use reason to grasp the truth about God and to experience salvation through that truth.

Nature of God

Aquinas believed that the existence of God is neither obvious nor unprovable. In the Summa Theologica, he considered in great detail five reasons for the existence of God. These are widely known as the quinquae viae, or the "Five Ways."

Concerning the nature of God, Aquinas felt the best approach, commonly called the via negativa, is to consider what God is not. This led him to propose five statements about the divine qualities:

1. God is simple, without composition of parts, such as body and soul, or matter and form.
2. God is perfect, lacking nothing. That is, God is distinguished from other beings on account of God's complete actuality.
3. God is infinite. That is, God is not finite in the ways that created beings are physically, intellectually, and emotionally limited. This infinity is to be distinguished from infinity of size and infinity of number.
4. God is immutable, incapable of change on the levels of God's essence and character.
5. God is one, without diversification within God's self. The unity of God is such that God's essence is the same as God's existence. In Aquinas's words, "in itself the proposition 'God exists' is necessarily true, for in it subject and predicate are the same."

In this approach, he is following, among others, the Jewish philosopher Maimonides.

Nature of the Trinity

Aquinas argued that God, while perfectly united, also is perfectly described by Three Interrelated Persons. These three persons (Father, Son, and Holy Spirit) are constituted by their relations within the essence of God. The Father generates the Son (or the Word) by the relation of self-awareness. This eternal generation then produces an eternal Spirit "who enjoys the divine nature as the Love of God, the Love of the Father for the Word."

This Trinity exists independently from the world. It transcends the created world, but the Trinity also decided to communicate God's self and God's goodness to human beings. This takes place through the Incarnation of the Word in the person of Jesus Christ and through the indwelling of the Holy Spirit (indeed, the very essence of the Trinity itself) within those who have experienced salvation by God.

Nature of Jesus Christ

In the Summa Theologica, Aquinas begins his discussion of Jesus Christ by recounting the biblical story of Adam and Eve and by describing the negative effects of original sin. The purpose of Christ's Incarnation was to restore human nature by removing "the contamination of sin", which humans cannot do by themselves. "Divine Wisdom judged it fitting that God should become man, so that thus one and the same person would be able both to restore man and to offer satisfaction."

Aquinas argued against several specific contemporary and historical theologians who held differing views about Christ. In response to Photinus, Aquinas stated that Jesus was truly divine and not simply a human being. Against Nestorius, who suggested that Son of God was merely conjoined to the man Christ, Aquinas argued that the fullness of God was an integral part of Christ's existence. However, countering Apollinaris' views, Aquinas held that Christ had a truly human (rational) soul, as well. This produced a duality of natures in Christ. Aquinas argued against Eutyches that this duality persisted after the Incarnation. Aquinas stated that these two natures existed simultaneously yet distinguishably in one real human body, unlike the teachings of Manichaeus and Valentinus.

In short, "Christ had a real body of the same nature of ours, a true rational soul, and, together with these, perfect Deity." Thus, there is both unity (in his one hypostasis) and diversity (in his two natures, human and Divine) in Christ.

Goal of human life

In Aquinas's thought, the goal of human existence is union and eternal fellowship with God. Specifically, this goal is achieved through the beatific vision, an event in which a person experiences perfect, unending happiness by seeing the very essence of God. This vision, which occurs after death, is a gift from God given to those who have experienced salvation and redemption through Christ while living on earth.

This ultimate goal carries implications for one's present life on earth. Aquinas stated that an individual's will must be ordered toward right things, such as charity, peace, and holiness. He sees this as the way to happiness. Aquinas orders his treatment of the moral life around the idea of happiness. The relationship between will and goal is antecedent in nature "because rectitude of the will consists in being duly ordered to the last end [that is, the beatific vision]." Those who truly seek to understand and see God will necessarily love what God loves. Such love requires morality and bears fruit in everyday human choices.

Modern influence

Many modern ethicists both within and outside the Catholic Church (notably Philippa Foot and Alasdair MacIntyre) have recently commented on the possible use of Aquinas's virtue ethics as a way of avoiding utilitarianism or Kantian "sense of duty" (called deontology). Through the work of twentieth century philosophers such as Elizabeth Anscombe (especially in her book Intention), Aquinas's principle of double effect specifically and his theory of intentional activity generally have been influential.

It is remarkable that Aquinas's aesthetic theories, especially the concept of claritas, deeply influenced the literary practice of modernist writer James Joyce, who used to extol Aquinas as being second only to Aristotle among Western philosophers. The influence of Aquinas's aesthetics also can be found in the works of the Italian semiotician Umberto Eco, who wrote an essay on aesthetic ideas in Aquinas (published in 1956 and republished in 1988 in a revised edition).

Eastern Orthodoxy criticism

The Eastern Orthodox Church has had a complex relationship with Aquinas' work. For a long time, Aquinas and scholastic or schoolbook theology was a standard part of the education of Orthodox seminarians. His philosophy found a strong advocate in the person of at least one Patriarch of Constantinople, Gennadius Scholarius.

The pioneer of neurodynamics, cognitive neuroscientist Walter Freeman, considers the work of Aquinas important in remodeling intentionality, the directedness of the mind toward what it is aware of.

Claims of Levitation

For centuries there have been recurring claims that Aquinas had the ability to levitate. For example G. K. Chesterton wrote that His experiences included well-attested cases of levitation in ecstasy; and the Blessed Virgin appeared to him, comforting him with the welcome news that he would never be a Bishop.

Biographies

Many biographies of Aquinas have been written over the centuries, one of the most notable was by G. K. Chesterton.

Sources

References

• Aquinas, Thomas (2000). An Aquinas Reader: Selections from the Writings of Thomas Aquinas. Fordham University Press. ISBN 0-8232-2029-X. {{cite book}}: Unknown parameter |coauthor= ignored (|author= suggested) (help)
• Aquinas, Thomas (2002). Aquinas's Shorter Summa. Manchester, NH: Sophia Institute Press. ISBN 1-9288-3243-1.
• Copleston, Frederick (1991). Aquinas: An Introduction to the Life and Work of the Great Medieval Thinker. Penguin Books. ISBN 0-1401-3674-6.
• Davies, Brian (2004). Aquinas: An Introduction. Continuum International Publishing Group. ISBN 0-8264-7095-5.
• Davies, Brian (1993). The Thought of Thomas Aquinas. Oxford University Press. ISBN 0-1982-6753-3.
• Healy, Nicholas M. (2003). Thomas Aquinas: Theologian of the Christian Life. Ashgate Publishing Ltd. ISBN 0-7546-1472-7.
• Kreeft, Peter (1990). Summa of the Summa. Ignatius Press. ISBN 0-8987-0300-X.
• Kung, Hans (1994). Great Christian Thinkers. New York: Continuum Books. ISBN 0-8264-0848-6.
• McInerny, Ralph M. (1993). Aquinas Against the Averroists: On There Being Only One Intellect. Purdue University Press. ISBN 1-5575-3029-7.
• Nichols, Aidan (2003). Discovering Aquinas: An Introduction to His Life, Work, and Influence. Wm. B. Eerdmans Publishing. ISBN 0-8028-0514-0.
• Craig Paterson & Matthew S. Pugh (eds.), Analytical Thomism: Traditions in Dialogue. Ashgate, 2006. Introduction to Thomism
• Stump, Eleonore (2003). Aquinas. Routledge. ISBN 0415029600.
• Faitanin, Paulo (2008). A Sabedoria do Amor: iniciação à filosofia de Santo Tomás de Aquino. Instituto Aquinate. ISSN 1982-8845.
• Faitanin, Paulo (2008). O Ofício do Sábio: o modo de estudar e ensinar segundo Santo Tomás de Aquino. Instituto Aquinate. ISSN 1982-8845.
• Geisler, Norman, ed. (1999), Baker Encyclopedia of Christian Apologetics, Grand Rapids, MI: Baker Academic
• Gordon, Barry (1987 [2009]) . "Aquinas, St Thomas," The New Palgrave: A Dictionary of Economics, v. 1, p. 100.
• Hampden, Renn Dickson (1848), "The Life of Thomas Aquinas: A Dissertation of the Scholastic Philosophy of the Middle Ages", The Encyclopaedia Metropolitana, London: John J. Griffin & Co.
• Schaff, Philip (1953). "Thomas Aquinas". The New Schaff-Herzog Encyclopedia of Religious Knowledge. Grand Rapids, MI: Baker Book House. pp. 422–423.
•  This article incorporates text from a publication in the public domain: Jackson, Samuel Macauley, ed. (1914). New Schaff–Herzog Encyclopedia of Religious Knowledge (third ed.). London and New York: Funk and Wagnalls. {{cite encyclopedia}}: Missing or empty |title= (help)
• This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Thomas Aquinas". [[Encyclopædia Britannica Eleventh Edition|Encyclopædia Britannica]] (11th ed.). Cambridge University Press. {{cite encyclopedia}}: URL–wikilink conflict (help)

See also

• Aquinas University of Legazpi
• Scholasticism
• Works by Thomas Aquinas
• Pontifical University of St. Thomas Aquinas (Angelicum)
• Dominican Order
• Institutions named after Thomas Aquinas
• Pontifical Academy of St. Thomas Aquinas
• Thomism
• Aristotelianism
• School of Salamanca, 16th century Spanish Thomists
• Bartholomew of Lucca, Aquinas's friend and confessor
• Etienne Gilson, Jacques Maritain, G.E.M. Anscombe, and Alasdair MacIntyre (all recent Thomists)
• High Middle Ages
• Christian mystics
• Flying Saints
• Medieval university
• University of Santo Tomas
• Aquinas and the Sacraments
• Thought of Thomas Aquinas

External links

By Aquinas

• Complete works of St. Thomas Aquinas in English
• Summa contra Gentiles
• Summa Theologica
• The Principles of Nature
• On Being and Essence (De Ente et Essentia)
• Catena Aurea (partial)
• Template:La icon Corpus Thomisticum - the works of St. Thomas Aquinas
• Works by Thomas Aquinas at Project Gutenberg
• Template:Worldcat id
• Bibliotheca Thomistica IntraText: texts, concordances and frequency lists
• St Thomas' Multilanguage Opera Omnia
• Thomas Aquinas in English
• Template:La icon Template:En icon De Magistro (On the teacher q. 11, a.1 of de Veritate)

About Aquinas

• St. Thomas Aquinas biography from Fr. Alban Butler's Lives of the Saints
• Aquinas 101: A Basic Introduction to the Thought of Saint Thomas Aquinaspublished by Ave Maria Press
• An Aquinas Bibliography
• "Thomas Aquinas" in the 1913 Catholic Encyclopedia.
• Article on Thomism by the Jacques Maritain Center of Notre Dame University
• Biography of Aquinas by G. K. Chesterton (Warning: protected by copyright outside of Australia)
• On the legend of St. Albert's automaton
• Aquinas on Intelligent Extra-Terrestrial Life
• Poetry of St. Thomas Aquinas
• Ralph McInerny and John O'Callaghan. "Saint Thomas Aquinas". In Zalta, Edward N. (ed.). Stanford Encyclopedia of Philosophy.
• Biography and ideas at SWIF/University of Bari/Italy
• Aquinas's Moral, Political and Legal Philosophy
• Aquinas the Scholar from The Thirteenth, the Greatest of Centuries, ch. XVII. by James Joseph Walsh
• Thomistica.net news and newsletter devoted to the academic study of Thomas Aquinas
• Thomas Aquinas at Find A Grave
• Thomistic Philosophy Inspired by the enduring thought of Saint Thomas Aquinas