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Thomas Aquinas

Thomas Aquinas was a 13th-century Italian Dominican friar, philosopher, and theologian, and a leading figure in medieval Scholasticism.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Thomas Aquinas was a 13th-century Italian Dominican friar, philosopher, and theologian, and a leading figure in medieval Scholasticism. He is best known for synthesizing Aristotelian philosophy with Christian theology in works such as the *Summa theologiae* and *Summa contra gentiles*. In Canada, his works are studied in philosophy, theology, and Catholic education, particularly in universities and seminaries.

Life

Thomas Aquinas was born near Aquino in the Kingdom of Sicily around 1224/25 and died in 1274 at Fossanova. He entered the Dominican Order and studied and taught in major medieval intellectual centres, including Paris and Cologne.

Philosophy and theology

Aquinas is known for integrating Aristotle’s philosophy with Christian doctrine. His work addressed logic, metaphysics, ethics, philosophy of mind, language, political philosophy, and philosophical theology, with the best-known argument being the 'five ways' for God’s existence.

Major works

His best-known writings are the *Summa theologiae* and *Summa contra gentiles*. He also produced philosophical treatises and commentaries on Aristotle that helped shape later scholastic thought.

Legacy and veneration

Aquinas became one of the central authorities in Roman Catholic theology and was canonized in 1323. He later received the title Doctor of the Church and remains a foundational figure in Thomism and Catholic education.

Key facts

  • Thomas Aquinas is regarded as the foremost medieval Scholastic thinker.
  • His major works include the *Summa theologiae* and *Summa contra gentiles*.
  • He synthesized Aristotelian philosophy with Christian theology.
  • He was canonized in 1323 and declared a Doctor of the Church.
  • He wrote commentaries on Aristotle, including *De anima* and the *Nicomachean Ethics*.
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Canadian context

Thomas Aquinas is studied in Canadian philosophy, theology, and Catholic education, especially in universities and seminaries that teach medieval philosophy and natural law.

Frequently asked questions

Who was Thomas Aquinas?
Thomas Aquinas was a 13th-century Italian Dominican philosopher and theologian, best known for shaping Scholasticism and Catholic theology.
What are Thomas Aquinas’s most important works?
His best-known works are the *Summa theologiae* and the *Summa contra gentiles*.
What is Thomas Aquinas known for in philosophy?
He is known for combining Aristotelian philosophy with Christian theology and for arguments about natural law and God’s existence.
Was Thomas Aquinas a saint?
Yes. He was canonized in 1323 and is recognized in the Catholic Church as a saint.
What title is Thomas Aquinas often given?
He is often called the Angelic Doctor and is also known as a Doctor of the Church.

References

  1. Encyclopaedia Britannicahttps://www.britannica.com/biography/Saint-Thomas-Aquinas
    Supports: Birth/death dates, birthplace, death place, major works, Scholasticism, canonization, intellectual contribution.
  2. Stanford Encyclopedia of Philosophyhttps://plato.stanford.edu/entries/aquinas/
    Supports: Biography, historical context, influence, relation to Aristotle, philosophy and theology.
  3. Internet Encyclopedia of Philosophyhttps://iep.utm.edu/thomas-aquinas/
    Supports: Scope of Aquinas’s philosophical work and the 'five ways'.
  4. Franciscan Mediahttps://www.franciscanmedia.org/saint-of-the-day/saint-thomas-aquinas/
    Supports: Titles of Doctor of the Church and Angelic Doctor.
  5. Encyclopedia.comhttps://www.encyclopedia.com/social-sciences/encyclopedias-almanacs-transcripts-and-maps/aquinas-thomas-c-1225-1274
    Supports: Biographical overview, teacher Albert the Great, canonization, Doctor of the Church.
  6. Thomas Aquinas Collegehttps://www.thomasaquinas.edu/about/our-patron
    Supports: Education in Paris and Cologne, teaching, canonization, Doctor of the Universal Church, patronage of Catholic education.