'I'm no historian,' said Harry. 'But morals are morals. What's unethical here and now is unethical anywhere, anytime.' 'Kane, you're wrong. It is ethical to execute a man for theft?' 'Of course.' 'Did you know that there was once a vastly detailed science of rehabilitation for criminals? It was a branch of psychology, naturally, but it was by far the largest such branch. By the middle of century twenty-one, nearly two-thirds of all criminals could eventually be released as cured.' 'That's silly. Why go to all that trouble when the organ banks must have been crying for - Oh. I see. No organ banks.'