Saint Thomas d'Aquin

Who is Saint Thomas Aquinas

Saint Thomas Aquinas, also known as the Angelic Doctor, is one of the greatest theologians and philosophers of the Catholic Church. His life, work and influence endure through the centuries, leaving a lasting imprint on Catholic thought. In this article, we will explore the life, teachings and legacy of this exceptional saint.

thomas aquinas

I- The Life of Saint Thomas Aquinas

The life of Saint Thomas Aquinas is marked by his erudition, his religious devotion and his commitment to the Church. Born in 1225 into a noble family in Roccasecca Castle, located in southern Italy, Thomas was destined for a brilliant career. From an early age, he showed signs of great intelligence and piety. At the age of five, his parents entrusted him to the Abbey of Montecassino to receive a Benedictine education.

However, Thomas's destiny led him down a different path. He left the abbey to study at the University of Naples, where he was exposed to the philosophy of Aristotle, a decisive moment in his intellectual formation. Her decision to join the Dominican Order, despite opposition from her family, marked the beginning of her religious life dedicated to the search for truth and service to God.

Thomas studied in Paris under Saint Albert the Great, another great theologian of the time. Under the tutelage of this enlightened mentor, Thomas perfected his understanding of philosophy and theology. His studies and meditation led him to develop profound and original thinking that would have a considerable impact on Christian thought and medieval philosophy.

During his life, Saint Thomas Aquinas wrote numerous theological works, but his magisterial sum, the "Theological Summa", remains his masterpiece. This monumental work explores almost every aspect of the Catholic faith in light of Aristotelian philosophy, a work that would become an essential reference for Catholic theology.

The influence of Saint Thomas Aquinas is not limited to theology and philosophy. He also wrote liturgical songs and played an active role in the Church advising popes and bishops. His life was a constant quest for truth and knowledge, combined with deep piety and unwavering devotion to God.

The life of Saint Thomas Aquinas is an illustration of how faith, reason and the quest for truth can coexist harmoniously. His intellectual and spiritual legacy endures today, influencing Catholic thought and philosophy around the world.

thomas aquinas

II- The Theological and Philosophical Contributions of Saint Thomas Aquinas

Saint Thomas Aquinas left an indelible mark in the fields of theology and philosophy. His intellectual contributions not only enriched the Catholic tradition, but they also significantly influenced Western thought. Here is an overview of his major theological and philosophical achievements:

A. The Theological Summa The “Theological Summa” is the master work of Saint Thomas Aquinas. This monumental volume is a vast theological treatise that explores in depth questions of faith, philosophy and morality. It is divided into three main parts: the first deals with God, the Trinity and creation, the second addresses the person of Jesus Christ and salvation, while the third concerns morality and spiritual life. This monumental work has been hailed as a pinnacle of medieval Christian thought.

B. The Synthesis of Faith and Reason Saint Thomas Aquinas was deeply influenced by the thought of Aristotle, an ancient Greek philosopher. He undertook the ambitious task of reconciling Aristotelian philosophy with Christian theology. He believed that reason and faith could coexist harmoniously, with each field providing valuable elements for understanding the truth. This approach, known as "scholastic theology", has had a lasting influence on Catholic thought.

C. The Proof of the Existence of God Saint Thomas Aquinas is famous for his five proofs of the existence of God, which are presented in the “Summa Theologique”. These proofs, based on Aristotle's philosophy, use reason to demonstrate the existence of God. They include arguments based on the first cause, motion, contingency, perfection, and intelligent design of the universe. This evidence has influenced the philosophy of religion for centuries and continues to be studied today.

D. Eucharistic Theology Saint Thomas Aquinas made significant contributions to Eucharistic theology. He formulated the doctrine of transubstantiation, which teaches that in the Eucharist, the bread and wine actually become the body and blood of Jesus Christ. This doctrine has become a central part of the Catholic faith and is celebrated during mass.

E. Christian Ethics The thought of Saint Thomas Aquinas also had a major impact on Christian ethics. He developed an approach to morality based on natural law, which is based on the belief that moral law is inscribed in the nature of man and can be understood by reason. This vision has influenced the moral doctrine of the Catholic Church and continues to inform Christian ethical reflection.

The theological and philosophical contributions of Saint Thomas Aquinas have left a lasting legacy in the Christian world and beyond. His ability to harmonize faith and reason, as well as his deep reflection on crucial questions of theology, make him one of the most eminent intellectual figures in Church history.

thomas aquinas

III- The Impact and Legacy of Saint Thomas Aquinas

The influence of Saint Thomas Aquinas on religious, philosophical and academic thought has been immense and continues to be felt throughout the centuries. Here are some aspects of his lasting impact and legacy:

A. Influence in Catholic Thought Saint Thomas Aquinas is considered one of the greatest doctors of the Church and his teaching is at the heart of the Catholic tradition. His writings, particularly the "Summa Theologique", are studied by seminarians, theologians and Catholic philosophers around the world. Its rigorous methodology and its ability to articulate the doctrines of the faith make it an essential reference for Catholic theology.

B. Thomism The school of thought that arises from the teachings of Saint Thomas Aquinas is called “Thomism”. Thomism is a philosophical and theological approach that emphasizes the rationality of faith and the compatibility of Aristotelian philosophy with Christian theology. He influenced scholastic philosophy and continues to exert considerable influence on contemporary philosophy, particularly with regard to metaphysics, ethics and the philosophy of religion.

C. Philosophy The thought of Saint Thomas Aquinas also had a profound impact on Western philosophy. His proofs of the existence of God, his thoughts on knowledge and reality, and his dialectical method influenced major philosophers such as René Descartes, Immanuel Kant and Jacques Maritain. Thomism continues to be a source of dialogue and reflection in the philosophical world.

D. Theology The theology of Saint Thomas Aquinas is a central reference for Christian theology. His doctrine of transubstantiation, his vision of grace and faith, as well as his understanding of the Trinity had a profound impact on Catholic theology. His writings are studied by theologians and have helped shape contemporary theology.

E. Morality The ethical thought of Saint Thomas Aquinas, based on natural law, influenced the development of Christian ethics. His ideas about virtue, the common good, and moral conscience have left a lasting imprint on Christian ethical thinking and continue to inspire contemporary debates about morality.

F. Worship and Canonization Saint Thomas Aquinas is celebrated as one of the greatest saints of the Catholic Church. He was canonized in 1323 by Pope John XXII. His liturgical feast is celebrated on January 28, the day of his death. He is revered as the patron saint of universities, students and theologians.

In conclusion, Saint Thomas Aquinas remains a revered figure in Christian thought, whose intellectual legacy continues to inspire theological, philosophical and ethical reflection. Its ability to reconcile faith and reason and to explore in depth fundamental questions of faith makes it a compelling reference for those seeking to understand the relationship between Christian faith and rational thought.

thomas aquinas


In conclusion, Saint Thomas Aquinas, with his intellectual genius and his deep faith, remains an essential figure in Christian thought. Its impact on theology, philosophy, ethics and all of Western thought is undeniable. His legacy, known as Thomism, continues to influence contemporary thought and remains a major point of reference in the dialogue between faith and reason.

Saint Thomas' ability to reconcile the Christian faith with Aristotelian philosophy opened new avenues of thought and enriched the understanding of the faith. His contributions to fields as varied as metaphysics, morality, theology, and philosophy shaped the Christian tradition and stimulated generations of thinkers.

As the patron saint of universities, students, and theologians, Saint Thomas Aquinas is also a model of holiness for all who seek to combine a life of deep faith with rigorous intellectual inquiry. His canonization and liturgical feast (January 28) are testimonies to the recognition of his lasting influence and holiness by the Catholic Church.

Ultimately, St. Thomas Aquinas reminds us that faith and reason are not mutually exclusive, but can enrich each other. His life and work encourage us to pursue a quest for truth guided by faith, rationality and a deep commitment to God.