move upon rivers and seas, and sail toward regions new:-- Fluctibus ignotis insultavere carinae. (Their keels danced upon waves unknown.) Here again they met with new productions of nature, new dangers, new needs that called for new exertions. The collision of animal instincts drives hordes against hordes, forges a sword out of the raw metal, begets adventurers, heroes, and despots. Towns are fortified, states are founded: with the states arise civic duties and rights, arts, figures, codes of law, subtle priests--and gods. And now, when necessities have degenerated into luxury, what a boundless field is opened to our eyes! Now are the veins of the earth burrowed through, the foot of man is planted on the bottom of the sea, commerce and travel flourish:-- Latet sub classibus aequor. (The sea is hid beneath the fleets.) The West wonders at the East, the East at the West; the productions of foreign countries accustom themselves to grow under other skies, and the art of gardening shows the products of three-quarters of the world in one garden. Artists learn her works from nature, music soothes the savage breast, beauty and harmony ennoble taste and manners, and art leads the way to science and virtue. "Man," says Schloezer [see Schloezer's Plan of his Universal History, S 6], "this mighty demigod, clears rocks from his path, digs out lakes, and drives his plough where once the sail was seen. By canals he separates quarters of the globe and provinces from one another; leads one stream to another and discharges them upon a sandy desert, changed thereby into smiling meadow; three quarters of the globe he plunders and transplants them into a fourth. Even climate, air, and weather acknowledge his sway. While he roots out forests and drains the swamp, the heaven grows clear above his head, moisture and mist are lost, winter becomes milder and shorter, because rivers are no longer frozen over." And the mind of man is refined with the refining of his clime.