The Summa Theologica of St. Thomas Aquinas

"Summa Theologica" is a comprehensive text authored by St. Thomas Aquinas, one of the foremost theologians in the history of the Catholic Church. The work, written between 1265 and 1274, is considered one of the classics of Western literature and philosophy, outlining Aquinas's comprehensive synthesis of Christian theology along with various elements of Aristotelian philosophy.

In the "Summa Theologica", Aquinas discusses a wide range of topics pertinent to theology and philosophy, including the existence and nature of God, the process of creation, the purpose of man, and the nature of morality. The text also delves into the virtues, the sacraments, and the life of Christ.

The work is structured into three main parts, each subdivided into numerous questions and articles, forming a systematic examination of the faith. Aquinas's logical and thorough approach to such complex subjects has made the "Summa Theologica" a cornerstone of theological study, even centuries after its initial publication.