The conception of Ra as the righteous judge, as the father and protector of the reigning Pharaoh, and as the guardian divinity of the Egyptian state, influenced profoundly the moral development in prefeudal Egypt, and was seemingly the inspiration of the great social reform movement which marked the history of the Eleventh and Twelfth Dynasties. In the words of Professor Breasted, “The moral obligations emerging in the Solar theology thus wrought the earliest social regeneration and won the earliest battle for social justice of which we know anything in history.”[71] [Sidenote: Religious dualism] In our introductory chapter we spoke of the influence of physical environment upon the moral life of a people. The history of the formation of the ethical type of ancient Egypt affords an excellent illustration of this; for it was probably out of the striking physical dualism of the Egyptian lands--the antagonism between the life-giving Nile and the ever-encroaching desert--that grew Egyptian religious dualism, embodied in the myth of the struggle between Osiris and Set.[72] At first the tale was a pure nature myth reflecting simply the conflict between two physical elements; but as the moral consciousness of the people who recited the story deepened, there was gradually read into it an ethical meaning. The conflict was now conceived as a mighty struggle between the powers of good and evil, between the beneficent Osiris (and his son and avenger, Horus) and the malignant Set.[73] This world philosophy reacted powerfully upon Egyptian morality, keeping as it did in the foreground of the moral consciousness the truth that the moral life is a battle against evil. “The triumph of right over wrong ... is the burden of nine tenths of the Egyptian texts which have come down to us.”[74] [Sidenote: The Osirian myth in its special development] Acted upon by the moral feelings, the Osirian myth underwent a special development. It came to represent not simply the eternal opposition between good and evil, but the whole moral order of the present and the future world. It told of the beneficent life of Osiris as king of Egypt, his death and resurrection, and of his office as king and judge in the realms of the dead. After having been given this rich moral content, the myth reacted powerfully upon the moral consciousness and became a chief agency in the formation of the moral character of the Egyptian race. Osiris, as reflected in the Osirian myth, became the incarnation of the ethical ideal. It is a great advantage to morality when the ideal of goodness is thus embodied in a divine exemplar. Osiris held some such relation to the moral life of ancient Egypt as Christ holds to the moral life of the Christian world. II. THE IDEAL [Sidenote: A homogeneous and unchanging conscience]