"Smith is not a man. He is an intelligent creature with the genes and ancestry of a man, but he is not a man. He's more a Martian than a man. Until we came along he had never laid eyes on a human being. He thinks like a Martian, he feels like a Martian. He's been brought up by a race which has nothing in common with us. Why, they don't even have sex. Smith has never laid eyes on a woman — still hasn't if my orders have been carried out. He's a man by ancestry, a Martian by environment."