Summum bonum (greatest or supreme good) was first introduced to humanity as Ahura-Mazda, `The Ultimate Good` who is God, by the Persian prophet Zoroaster, whose ideas would later heavily influence Judeo-Christian beliefs. In Western literature, it is a neoplatonic concept attributed to the ChristianGod by Saint Augustine in de natura boni (399), in direct opposition to his earlier Manichaean (a religion by another Persian prophet, Mani) convictions. Augustine denies the positive existence of absolute evil, describing a world with God as the supreme good at the center, and defining different grades of evil as different stages of remoteness from that center. Neoplatonism (also Neo-Platonism) is a school of philosophy that took shape in the 3rd century A.D. Based on the teachings of Plato and the Platonists, it contained enough unique interpretations of Plato that some view Neoplatonism as substantively different from what Plato wrote and believed. ... Christianity is a monotheistic religion centered on the life, teachings, and actions of Jesus as recounted in the New Testament. ... Michelangelos depiction of God in the painting Creation of the Sun and Moon in the Sistine Chapel) This article discusses the term God in the context of monotheism and derived henotheistic forms. ... St. ... Events Yazdegerd I becomes king of Persia November 27 - St. ... Manichaeism was one of the major ancient religions. ... Evil is a term describing that which is regarded as morally bad, intrinsically corrupt, wantonly destructive, inhumane, or wicked. ... Michelangelos depiction of God in the painting Creation of the Sun and Moon in the Sistine Chapel) This article discusses the term God in the context of monotheism and derived henotheistic forms. ...
It is equivalent with the term agathon and is used to mean the highest good. It refers to a transcendent standard of justice and the good in ancient political philosophy.