Thus among the Iranian races, out of the old patriarchal worship of fire and light, on the occasion of the religious struggle with the Indian Arya, and under the influence of Zarathustra, there was developed the doctrine of one supreme God,[3] who, surrounded by the good spirits of heaven, wages war against evil, whence arose later the moral opposition between Ahura-Mazda and Angro-mainyus resulting in the victory of the good principle over the bad. The old dualism of force and matter, beneficent and destructive powers of nature, light and darkness, becomes in Parsism moral. The deity, no longer identified with nature, becomes a personal, spiritual being, the creator of mankind; and the end of the world's development is conceived as the triumph of the good. Hence the high rank which the doctrine of Zarathustra and its further development holds in the history of religion. 3. THE GREEKS. As man rises in spiritual development, nature becomes to him a revelation ever more and more manifold of the divine. To the Greek (Pelasgi, Hellenes) the whole of nature was living, and his imagination peopled her everywhere with divine beings, who in wood and field, in rivers and on mountains (Oreads, Dryads, Naiads, Sileni, &c.), hovered friendly round him. The Greek was indeed distinguished from other nations by this richer and more elevated view of nature; but he excelled them most of all in this, that the divine object which he worshiped was conceived both in form and character after the human. Zeus, Phoebus Apollo, Pallas Athene, Aphrodite, Ares, Hephaestus, Hestia, Hermes, Artemis, were originally powers of nature personified, as some epithets in Homer[4] still indicate; but they became, sometimes under the same names, types of power and lordship, science and art, courage and sensuous beauty. While Dionysus, Demeter, Hades, and Persephone remained earthly, and Helios, Eos, Iris, and Hecate, heavenly divinities, and Oceanus, Poseidon, Amphitrite, Proteus, and Nereus ruled the waters, Zeus was conceived as the god of the sky and of thunder, who hurled the bolts, the great king and lawgiver, the father of men, and Hera, originally the air, became the protecting goddess of married life; Apollo, the god of light, who shot forth his arrows, not at first identified with Helios, became the god of divination and poetry, who led the choir of the muses; the goddess of light, Athene, became the contentious goddess of wisdom; Aphrodite, born of the foam of the sea, once the symbol of the fruitful power of nature, later, encircled by the Graces, became the type of womanly beauty and charm, to which the strength of man, personified in Ares, corresponds. In like manner in the later mythology, Hephaestus, the god of fire, appeared as the god of the forge, Hestia, the goddess of fire, as the protector of the household hearth, and Hermes, the god of the storm and of rain, as the messenger of the gods, the type of cunning and craftiness, while Artemis, the