But I find not only this equality between new and old countries, as seen by the eye of science, but also a certain equivalence of the ages of history; and as the child is in his playthings working incessantly at problems of natural philosophy,--working as hard and as successfully as Newton,--so it were ignorance not to see that each nation and period has done its full part to make up the result of existing civility. We are all agreed that we have not on the instant better men to show than Plutarch's heroes. The world is always equal to itself. We cannot yet afford to drop Homer, nor Æschylus, nor Plato, nor Aristotle, nor Archimedes. Later, each European nation, after the breaking up of the Roman Empire, had its romantic era, and the productions of that era in each rose to about the same height. Take for an example in literature the _Romance of Arthur_, in Britain, or in the opposite province of Brittany; the _Chansons de Roland_, in France; the Chronicle of the Cid, in Spain; the _Niebelungen Lied_, in Germany; the Norse Sagas, in Scandinavia; and, I may add, the Arabian Nights, on the African coast. But if these works still survive and multiply, what shall we say of names more distant, or hidden through their very superiority to their coevals,--names of men who have left remains that certify a height of genius in their several directions not since surpassed, and which men in proportion to their wisdom still cherish,--as Zoroaster, Confucius, and the grand scriptures, only recently known to Western nations, of the Indian Vedas, the Institutes of Menu, the Puranas, the poems of the Mahabarat and the Ramayana? In modern Europe, the Middle Ages were called the Dark Ages. Who dares to call them so now? They are seen to be the feet on which we walk, the eyes with which we see. 'Tis one of our triumphs to have reinstated them. Their Dante and Alfred and Wickliffe and Abelard and Bacon; their Magna Charta, decimal numbers, mariner's compass, gunpowder, glass, paper, and clocks; chemistry, algebra, astronomy; their Gothic architecture, their painting,--are the delight and tuition of ours. Six hundred years ago Roger Bacon explained the precession of the equinoxes, and the necessity of reform in the calendar; looking over how many horizons as far as into Liverpool and New York, he announced that machines can be constructed to drive ships more rapidly than a whole galley of rowers could do, nor would they need anything but a pilot to steer; carriages, to move with incredible speed, without aid of animals; and machines to fly into the air like birds. Even the races that we still call savage or semi-savage, and which preserve their arts from immemorial traditions, vindicate their faculty by the skill with which they make their yam-cloths, pipes, bows, boats, and carved war-clubs. The war-proa of the Malays in the Japanese waters struck Commodore Perry by its close resemblance to the yacht "America."