The useful arts are but reproductions or new combinations by the wit of man, of the same natural benefactors. He no longer waits for favoring gales, but by means of steam, he realizes the fable of Æolus's bag, and carries the two and thirty winds in the boiler of his boat. To diminish friction, he paves the road with iron bars, and, mounting a coach with a ship-load of men, animals, and merchandise behind him, he darts through the country, from town to town, like an eagle or a swallow through the air. By the aggregate of these aids, how is the face of the world changed, from the era of Noah to that of Napoleon! The private poor man hath cities, ships, canals, bridges, built for him. He goes to the post-office, and the human race run on his errands; to the book-shop, and the human race read and write of all that happens, for him; to the court-house, and nations repair his wrongs. He sets his house upon the road, and the human race go forth every morning, and shovel out the snow, and cut a path for him.