See Summa Theologica, Part I, Question 3, etc.

St Thomas Aquinas in the Summa Theologica, II: II Quaestio 25, Article 4 states that we should love our neighbour more than our ourselves.

He was the first Jesuit to teach at the university, where the subject of his course was the Summa Theologica of Thomas Aquinas.

St. Thomas Aquinas, a prominent doctor of the Catholic Church, was the first to write a full treatment of the relationship, differences, and similarities between faith — an intellectual assent — and reason, predominately in his Summa Theologica, De Veritate, and Summa contra Gentiles.

Summa Theologica, written by Thomas Aquinas in the second half of the 13th century, is a series of common questions about Christianity to which he wrote a series of replies.

He attempted to clarify Aquinas's Five Ways ( in the Summa Theologica ) by making a distinction between in fieri causes and in esse causes.

The work for which he is best-known is the Summa Theologica.

He was no longer satisfied with his chair as the means of propagating his ideas, and soon after his return from Bruges he began to express them in tracts and longer works – his great work, the Summa Theologica, was written in support of them.

Physico-theology is the term for a theology based on the constitution of the natural world, especially derived from perceived elements of " design ", which gave rise to the argument from design for the existence of God, beginning with the " fifth way " of the Summa Theologica by Thomas Aquinas ( d. 1274 ).

Thomas Aquinas ( c. 1225 – 1274 ), wrote Summa Theologica and Summa Contra Gentiles which both present various versions of the Cosmological argument and Teleological argument, respectively.

The Roman Catholic Church holds the view of natural law set forth by Thomas Aquinas, particularly in his Summa Theologica, and often as filtered through the School of Salamanca.

Summa Theologica.

* Thomas Aquinas, Summa Theologica

Medieval political philosophers, such as Aquinas in Summa Theologica, developed the idea that a king who is a tyrant is no king at all and could be overthrown.

Huxley concludes that mescaline is not enlightenment or the Beatific Vision, but a ' gratuitous grace ' ( a term taken from St Thomas Aquinas ’ Summa Theologica ).

Saint Thomas Aquinas addressed ben Sirach -- and, by extension, Wittgenstein -- in the First Article, First Part, of his Summa Theologica:

Moreover, there has been extensive commentary on the relationship between the respective treatises of Wittgenstein ( Tractatus ) and Aquinas ( Summa Theologica ).

Thomas Aquinas ( 1225-1274 ) presented a form of the teleological argument in his Summa Theologica.

* Aquinas, Thomas, Summa Theologica, Fathers of the English Dominican Province ( trans.

Thomas Aquinas completed his seminal work Summa Theologica late in 1273, and died in 1274.

* 1273 – December 6 – Saint Thomas Aquinas quits his writing of Summa Theologica — a work considered within the Roman Catholic Church to be the paramount expression of its theology — leaving it unfinished after having a mystical experience during Mass.

For instance, the Summa Theologica of Thomas Aquinas ( 1225-1274 ) states that " it is superfluous to suppose that what can be accounted for by a few principles has been produced by many ".

Thomas Aquinas's masterwork, the Summa Theologica, is often seen as the highest fruit of Scholasticism.

However, it does seem clear that his first notable work, Summa Quoniam Homines, was completed somewhere between 1155 and 1165, with the most conclusive date being 1160, and likely was developed through his lectures at the school in Paris.

Alan wrote three very large theological textbooks, one being his first work, Summa Quoniam Homines.

However, details of these beliefs can be found in almost everything he wrote, from his early Summa de bono to his last work, the Summa theologiae.

Several works among the best known during this long period could be cited as an example, from Strabo ( Geography ), Eratosthenes ( Geography ) or Dionisio Periegetes ( Periegesis Oiceumene ) in the Ancient Age to the Alexander von Humboldt ( Cosmos ) in the century XIX, in which geography is regarded as a physical and natural science, of course, through the work Summa de Geografía of Martín Fernández de Enciso from the early sixteenth century, which is indicated for the first time the New World.

In the 13th century a clear distinction was made between classical philosophers, modern ( to the people then ) philosophers, theosophers, and theologians in the work Summa philosophiae attributed to Robert Grosseteste.

Several important cultural achievements were made in the decade, including publication of Roger Bacon's important scientific work Opus Majus and Thomas Aquinas ' Summa contra Gentiles.

* 1264 – Thomas Aquinas completes his theological work Summa contra Gentiles.

* December 6 – Thomas Aquinas quits his writing of Summa Theologica — a master work of Catholic theology — leaving it unfinished after having a mystical experience during Mass.

* Thomas Aquinas completes his theological work Summa contra Gentiles.

His most famous work is Summa Theologica

Double-effect originates in Thomas Aquinas's treatment of homicidal self-defense, in his work Summa Theologiae.

In his work Summa de Geografía, he states that they found an indigenous population who called themselves the " Veneciuela ," which suggests that the name " Venezuela " may have evolved from the native word.

For instance, after completing his monumental work Summa Theologica, St. Thomas Aquinas concluded that he had not yet begun to understand God the Father.

The new derivative work utilized a more modern language and incorporated the new information that was presented to Ra by the Summa Individuals.

Since Thomas treats what can be known about God in this bifurcated manner, many have called the Summa contra Gentiles ( at least the first three books ) his most philosophical work, insofar as we would understand that term today.

His main work, the Summa Theologica, shows a profound knowledge not only of the writings of Avicebron ( Ibn Gabirol ), whose name he mentions, but also of most Jewish philosophical works then existing.

His principal theological work was the Fortbildung des Christenthums zur Weltreligion, in 4 volumes ( Leipzig, 1833 – 1840 ); Entwurf einer reinbiblischen Theologie appeared in 1792 ( 2nd ed., 1801 ), Summa Theologiae Christianas in 1803 ( other editions, 1808, 1816, 1830 ); Das Leben Jesu in 1842, and Die wahre und falsche Orthodoxie in 1849.

The " Summa Codicis ", attributed to Irnerius by Herman Fitting in his 1894 edition is now widely considered a later work of between 1130 and 1159, but remains the earliest known summa on Justinian's Code

His most influential work is his Summa Codicis, a commentary of the civil law organized according to the order of Justinian's Code.