Both of these systems, as being essentially moral systems in the interest of humanity, proceed from persons. For it is a curious fact, that, while the essentially spiritualistic religions are ignorant of their founders, all the moral creeds of the world proceed from a moral source, i.e. a human will. Brahmanism, Gnosticism, the Sufism of Persia, the Mysteries of Egypt and Greece, Neo-Platonism, the Christian Mysticism of the Middle Ages,--these have, strictly speaking, no founder. Every tendency to the abstract, to the infinite, ignores personality.[133] Individual mystics we know, but never the founder of any such system. The religions in which the moral element is depressed, as those of Babylon, Assyria, Egypt, Greece, Rome, are also without personal founders. But moral religions are the religions of persons, and so we have the systems of Confucius, Buddha, Zoroaster, Moses, Mohammed.[134] The Protestant Reformation was a protest of the moral nature against a religion which had become divorced from morality. Accordingly we have Luther as the founder of Protestantism; but mediæval Christianity grew up with no personal leader. The whole religion of the Avesta revolves around the person of Zoroaster, or Zarathustra. In the oldest part of the sacred books, the Gâthâs of the Yaçna, he is called the _pure_ Zarathustra, good in thought, speech, and work. It is said that Zarathustra alone knows the precepts of Ahura-Mazda (Ormazd), and that he shall be made skilful in speech. In one of the Gâthâs he expresses the desire of bringing knowledge to the pure, in the power of Ormazd, so as to be to them strong joy (Spiegel, Gâthâ Ustvaiti, XLII. 8), or, as Haug translates the same passage (Die Gâthâs des Zarathustra, II. 8): "I will swear hostility to the liars, but be a strong help to the truthful." He prays for truth, declares himself the most faithful servant in the world of Ormazd the Wise One, and therefore begs to know the best thing to do. As the Jewish prophets tried to escape their mission, and called it a burden, and went to it "in the heat and bitterness of their spirit," so Zoroaster says (according to Spiegel): "When it came to me through your prayer, I thought that the spreading abroad of your law through men was something difficult."