来自《耶鲁大学开放课程：金融理论 第4集 第4集》

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  we can measure it.
  人们的快乐度"
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  So for example, we can measure how aroused their skin is.
  比如 我们可以测量他们皮肤的敏感度
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  The skin texture changes as you become less and more aroused.
  肤质会随着你的觉醒程度而改变
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  Maybe we could measure that.
  也许我们可以测量出这个值
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  With MRIs we can measure brain waves.
  我们可以用核磁共振测量脑电波
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  Maybe you can calibrate how many brain waves are spinning
  也许我们可以测量我们的脑电波如何变更
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  around and how happy somebody is,
  和一个人的快乐程度
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  and maybe there's some mysterious good like food that
  也许还有一些其他的神秘的好东西
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  has constant marginal utility."
  比如有不变边际效用的食物"
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  Well, that doesn't seem very persuasive to me and it wasn't
  对我来说这个并不具有说服力
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  to the economists of the beginning of the twentieth century.
  他们也无法说服20世纪初的那些经济学家
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  They all argued, starting with Irving Fisher,
  从Irving Fisher开始他们就开始争论