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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  The telepathic stuff is really crazy but--;
  精神感应这方面确实很疯狂
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  So, I'm not at this point--
  所以 我在此不就再多说
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  We're going to devote a lecture to sex.
  我们会有一整节的课来讨论性别
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  I do not, at this point, want to make any claims one way or another.
  我现在并非要发表什么观点
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  But what I want to suggest is that from a biological point of view
  我想说从生物学的角度来看
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  we could say sensible and intelligent things about
  我们可以合理聪明地判断出
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  what differences should exist and what shouldn't.
  什么样的差异应该存在和不应该存在
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  Finally, and most of all,
  最后 也是最重要的
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  looking at something from the perspective of design,
  当你从设计的角度看某件事物
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  the perspective of what's it for,
  从它为什么而存在的角度
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  can often give you interesting insights as to its current nature.
  你会在它现有的本性中发现有趣的见解
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  And I'll give you two quick examples,
  我会给你们两个简单的例子