Zeus, the great presiding deity of the universe, the ruler of heaven and earth, was regarded by the Greeks, first, as the god of all aerial phenomena; secondly, as the personification of the laws of nature; thirdly, as lord of state-life; and fourthly, as the father of gods and men. As the god of aerial phenomena he could, by shaking his ægis, produce storms, tempests, and intense darkness. At his command the mighty thunder rolls, the lightning flashes, and the clouds open and pour forth their refreshing streams to fructify the earth. As the personification of the operations of nature, he represents those grand laws of unchanging and harmonious order, by which not only the physical but also the moral world is governed. Hence he is the god of regulated time as marked by the changing seasons, and by the regular succession of day and night, in contradistinction to his father Cronus, who represents time absolutely, i.e. eternity. As the lord of state-life, he is the founder of kingly power, the upholder of all institutions connected with the state, and the special friend and patron of princes, whom he guards and assists with his advice and counsel. He protects the assembly of the people, and, in fact, watches over the welfare of the whole community. As the father of men, he takes a paternal interest in the actions and well-being of mortals. He watches over them with tender solicitude, rewarding truth, charity, and uprightness, but severely punishing perjury, cruelty, and want of hospitality. Even the poorest and most forlorn wanderer finds in him a powerful advocate, for he, by a wise and merciful dispensation, ordains that the mighty ones of the earth should succour their distressed and needy brethren. As the worship of Zeus formed such an important feature in the religion of the Greeks, his statues were necessarily both numerous and magnificent. He is usually represented as a man of noble and imposing mien, his countenance expressing all the lofty majesty of the omnipotent ruler of the universe, combined with the gracious, yet serious, benignity of the father and friend of mankind. He may be recognized by his rich flowing beard, and the thick masses of hair, which rise straight from the high and intellectual forehead and fall to his shoulders in clustering locks. The nose is large and finely formed, and the slightly-opened lips impart an air of sympathetic kindliness which invites confidence. He is always accompanied by an eagle, which either surmounts his sceptre, or sits at his feet; he generally bears in his uplifted hand a sheaf of thunder-bolts, just ready to be hurled, whilst in the other he holds the lightning. The head is frequently encircled with a wreath of oak-leaves. As the father of the gods, Zeus sees that each deity performs his or her individual duty, punishes their misdeeds, settles their disputes, and acts towards them on all occasions as their all-knowing counsellor and mighty friend. The most celebrated statue of the Olympian Zeus was that by the famous Athenian sculptor Phidias, which was forty feet high, and stood in the temple of Zeus at Olympia. It was formed of ivory and gold, and was such a masterpiece of art, that it was reckoned among the seven wonders of the world. It represented the god, seated on a throne, holding in his right hand a life-sized image of Nike (the goddess of Victory), and in his left a royal sceptre, surmounted by an eagle. It is said that the great sculptor had concentrated all the marvellous powers of his genius on this sublime conception, and earnestly entreated Zeus to give him a decided proof that his labours were approved. An answer to his prayer came through the open roof of the temple in the shape of a flash of lightning, which Phidias interpreted as a sign that the god of heaven was pleased with his work. It will doubtless have been remarked that in the representations of Zeus he is always accompanied by an eagle. This royal bird was sacred to him, probably from the fact of its being the only creature capable of gazing at the sun without being dazzled, which may have suggested the idea that it was able to contemplate the splendour of divine majesty unshrinkingly. The oak-tree, and also the summits of mountains, were sacred to Zeus. His sacrifices consisted of white bulls, cows, and goats. Zeus had seven immortal wives, whose names were Metis, Themis, Eurynome, Demeter, Mnemosyne, Leto, and Hera.