. The rich man may come to breeding a tribe of dwarfs to be his jockeys, and a tribe of giants to be his hall-porters. Grooms might be born bowlegged and tailors born cross-legged; perfumers might have long, large noses and a crouching attitude, like hounds of scent; and professional wine-tasters might have the horrible expression of one tasting wine stamped upon their faces as infants. Whatever wild image one employs it cannot keep pace with the panic of the human fancy, when once it supposes that the fixed type called man could be changed. If some millionaire wanted arms, some porter must grow ten arms like an octopus; if he wants legs, some messenger-boy must go with a hundred trotting legs like a centipede. In the distorted mirror of hypothesis, that is, of the unknown, men can dimly see such monstrous and evil shapes; men run all to eye, or all to fingers, with nothing left but one nostril or one ear. That is the nightmare with which the mere notion of adaptation threatens us. That is the nightmare that is not so very far from the reality.