"Most people understand that sexual lust has to do with propagating genes. Copulation in nature tends to lead to reproduction and so to more genetic copies. But in modern society, most copulations involve contraception, designed precisely to avoid reproduction. Altruism probably has origins like those of lust."

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We had one or another form of state capitalism during an extremely brief period of human history, which tells us essentially nothing about human nature. If you look at human societies and human interactions, you can find anything. You find selfishness, you find altruism, you find sympathy.

— Noam Chomsky