Thomas Aquinas, an influential Dominican friar and theologian, begins work on his Summa theologica, a compendium of all of the main theological teachings of the Catholic Church


Papal States


Very important (8)


Religion, Philosophy


Question. 1 - THE NATURE AND EXTENT OF SACRED DOCTRINE (TEN ARTICLES) Art. 1 - Whether, besides philosophy, any further doctrine is required? [...] Objection 2: Further, knowledge can be concerned only with being, for nothing can be known, save what is true; and all that is, is true. But everything that is, is treated of in philosophical science---even God Himself; so that there is a part of philosophy called theology, or the divine science, as Aristotle has proved (Metaph. vi). Therefore, besides philosophical science, there is no need of any further knowledge. I answer that, It was necessary for man's salvation that there should be a knowledge revealed by God besides philosophical science built up by human reason. Firstly, indeed, because man is directed to God, as to an end that surpasses the grasp of his reason: "The eye hath not seen, O God, besides Thee, what things Thou hast prepared for them that wait for Thee" (Is. 64:4).

Summa Theologica by Thomas Aquinas