The Summa Theologica (or the Summa Theologiae or simply the Summa, written 1265–1274) is the most famous work of Thomas Aquinas (c. 1225–1274) although it was never finished. It was intended as a manual for beginners and a compilation of all of the main theological teachings of that time. It summarizes the reasoning for almost all points of Christian theology in the West, which, before the Protestant Reformation, subsisted solely in the Roman Catholic Church. The Summa's topics follow a cycl ...

More than nine hundred years after it was first written, this unfinished work of a scholar saint still has the power to move our minds and hearts and set us thinking on the really important questions of life. Summa Theologica or simply the Summa as it is known, was written some time between 1265-74. It is a work that has had a profound and enduring influence on Western thought and literature. Designed to provide answers to Catholic theologians about the teachings of the Church, Thomas Aquina ...