来自《耶鲁大学开放课程—哲学：死亡 第9集 第9集》

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  How do I prove that there aren't any dragons?
  那我该怎么证明真的没有龙呢
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  I mean, there could be dragons.
  其实也是可能有龙的
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  Couldn't there?
  对不
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  But there aren't any.
  但实际上的确是没有的
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  We don't believe in dragons.
  我们不相信有龙
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  So don't you need to disprove the existence of dragons
  那在你说自己不相信有龙存在之前
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  before you continue on your way of not believing in them?
  是不是该证明它们真的并不存在呢
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  I imagine nobody in this room believes
  我假设教室里大家都不相信
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  in the existence of Zeus, the Greek god.
  希腊神话中天王宙斯的存在
• 
  
  How do you disprove the existence of Zeus?
  那你要怎么证明宙斯是不存在的呢
• 
  
  Don't we have an obligation to prove that Zeus doesn't exist?
  我们是否必须证明宙斯并不存在呢
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  But how could you do that?
  那该怎么做呢