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Affection between adults - if they are really adult in mind and not merely grown up children - and creatures so relatively selfish and cruel as children necessarily are without knowing it or meaning it, cannot be called natural

成年人之间的感情——如果他们在思想上是真正的成年人，而不仅仅是已经长大成人的孩子——和孩子们之间的感情是如此自私和残忍，孩子们必然不知道或没有意识到这一点，那么这种感情就不能被称为自然的

— George Bernard Shaw 萧伯纳