来自《耶鲁大学开放课程：心理学导论 第10集 第10集》

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  yes, that does diminish sexual desire,
  是的 的确减少了性欲
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  but an even bigger cue was
  但一个更大的信号是
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  "did you observe your parents,
  你是否见过你父母
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  and in particular, your mother, taking care of that person?"
  尤其是你母亲 照顾那个人
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  If you did, that seriously diminishes sexual desire
  如果你见过 那就重重的削弱了性欲
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  and brings it down to the level of disgust.
  并且直接降低到恶心的级别
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  And again, these are the sort of questions and issues
  同样 这些是当你开始
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  you begin to ask when you approach things from
  从进化论的角度思考时
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  an evolutionary perspective.
  会产生的问题
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  Okay.
  好了
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  For this lecture--the rest of this lecture
  这节课剩下的时间
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  and then the next couple of lectures,
  和后面几节课