"And Prometheus kept on looking before him so far ahead, that as he was running about with a box of lucifers (which were the only useful things he ever invented, and do as much harm as good), he trod on his own nose, and tumbled down (as most deductive philosophers do), whereby he set the Thames on fire; and they have hardly put it out again yet. So he had to be chained to the top of a mountain, with a vulture by him to give him a peck whenever he stirred, lest he should turn the whole world upside down with his prophecies and his theories. "But stupid old Epimetheus went working and grubbing on, with the help of his wife Pandora, always looking behind him to see what had happened, till he really learnt to know now and then what would happen next; and understood so well which side his bread was buttered, and which way the cat jumped, that he began to make things which would work, and go on working, too; to till and drain the ground, and to make looms, and ships, and railroads, and steam ploughs, and electric telegraphs, and all the things which you see in the Great Exhibition; and to foretell famine, and bad weather, and the price of stocks and (what is hardest of all) the next vagary of the great idol Whirligig, which some call Public Opinion; till at last he grew as rich as a Jew, and as fat as a farmer, and people thought twice before they meddled with him, but only once before they asked him to help them; for, because he earned his money well, he could afford to spend it well likewise. "And his children are the men of science, who get good lasting work done in the world; but the children of Prometheus are the fanatics, and the theorists, and the bigots, and the bores, and the noisy windy people, who go telling silly folk what will happen, instead of looking to see what has happened already." Now, was not Mother Carey's a wonderful story? And, I am happy to say, Tom believed it every word. For so it happened to Tom likewise. He was very sorely tried; for though, by keeping the dog to heels (or rather to toes, for he had to walk backward), he could see pretty well which way the dog was hunting, yet it was much slower work to go backwards than to go forwards. But, what was more trying still, no sooner had he got out of Peacepool, than there came running to him all the conjurers, fortune-tellers, astrologers, prophesiers, projectors, prestigiators, as many as were in those parts (and there are too many of them everywhere), Old Mother Shipton on her broomstick, with Merlin, Thomas the Rhymer, Gerbertus, Rabanus Maurus, Nostradamus, Zadkiel, Raphael, Moore, Old Nixon, and a good many in black coats and white ties who might have known better, considering in what century they were born, all bawling and screaming at him, "Look a-head, only look a-head; and we will show you what man never saw before, and right away to the end of the world!"