她们颠覆传统，以男人的风格行事——自私而冷漠，这种克制自身母性的行为在某种程度上也违逆了女人的天性，让我们颇为震惊。
They shock us now, those women who bucked convention and did things the way men have often done-just as selfishly and callously-denying maternity in a way that seems to defy nature.
就是为自己而活，或者我们所说的自私。
的确，我们科学家彼此交流时，一直都在用比喻：我们说自私的DNA，孤儿接收者，蛋白质像是伴侣，而基因像是搭车旅行。
Indeed, we scientists use metaphors all the time when we communicate with one another: we speak of selfish DNA and orphan receptors and proteins that serve as chaperones and genes that hitchhike.
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