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Physically there is nothing to distinguish human society from the farmyard except that children are more troublesome and costly than chickens and calves, and that men and women are not so completely enslaved as farm stock.
从身体上看，人类社会和农家没有什么区别，除了孩子比鸡和小牛更麻烦、更昂贵，而且男人和女人不像农家牲畜那样完全受奴役。