来自《耶鲁大学开放课程—哲学：死亡 第7集 第7集》

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  So the Platonic metaphysics says quite generally,
  柏拉图的形而上学论说得非常笼统
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  if we're thinking about the ideas or the forms,
  假如我们提到理念或者型相
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  the point to grasp is they're eternal; they're non-physical.
  要点就是他们是永恒的 是非现实的
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  The crucial premise
  最关键的前提是
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  since we're giving Plato number one
  我们已经承认了前提一
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  the crucial premise for our purposes is premise number two.
  所以对我们来说最关键的前提是前提二
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  Is it or isn't it true
  我们是否可以说
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  that those things which are eternal
  那些永恒
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  or non-physical can only be grasped
  或非现实的事物只能被
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  by something that is itself eternal and non-physical?
  本身是永恒和非现实的其他事物认知呢
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  Again, it does seem as though the conclusion that he wants,
  看起来他想要的第三条结论
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  number three, follows from that.
  是很合理的推论