A little while ago I saw models of everything man has made for his use and for his convenience. I saw all the models of all the watercraft, from the dug-out, in which floated a naked savage--one of our ancestors--a naked savage, with teeth two inches long, with a spoonful of brains in the back of his head; I saw the watercraft of the world, from that dug-out up to a man-of-war that carries a hundred guns and miles of canvas; from that dug-out to the steamship that turns its brave prow from the port of New York through 3,000 miles of billows, with a compass like a conscience, that does not miss throb or beat of its mighty iron heart from one shore to the other. I saw at the same time the weapons that man has made, from a rude club, such as was grasped by that savage when he crawled from his den, from his hole in the ground, and hunted a snake for his dinner--from that club to the boomerang, to the sword, to the cross-bow, to the blunderbuss, to the flint-lock, to the cap-lock, to the needle-gun, up to the cannon cast by Krupp, capable of hurling a ball of 2,000 pounds through eighteen inches of solid steel. I saw, too, the armor from the turtle-shell that our ancestor lashed upon his skin when he went out to fight for his country, to the skin of the porcupine, with the quills all bristling, which he pulled over his orthodox head to defend himself from his enemies--I mean, of course, the orthodox head of that day--up to the shirts of mail that were worn in the middle ages, capable of resisting the edge of the sword and the point of the spear; up to the iron-clad, to the monitor completely clad in steel, capable only a few years ago of defying the navies of the globe. I saw at the same time the musical instruments, from the tomtom, which is a hoop with a couple of strings of rawhide drawn across it--from that tomtom up to the instruments we have today, which make the common air blossom with melody. I saw, too, the paintings, from the daub of yellow mud up to the pieces which adorn the galleries of the world. And the sculpture, from the rude gods, with six legs and a half dozen arms, and the rows of ears, up to the sculpture of now, wherein the marble is clad with such loveliness that it seems almost a sacrilege to touch it; and in addition I saw there ideas of books--books written upon skins of wild beasts, books written upon shoulder-blades of sheep; books written upon leaves, upon bark, up to the splendid volumes that adorn the libraries of our time. When I think of libraries, I think of the remark of Plato, "The house that has a library in it has a soul."