来自《耶鲁大学开放课程—哲 第4集 第4集》

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  and know all sorts of things about how light works.
  通晓光的原理
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  You use such and such frequencies,
  知道你用了多少多少频率的光
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  and which objects, and you hand him an apple
  是哪些物体 然后你递给他一个苹果
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  and he'll say,
  他会说
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  "Oh, it must be very red," Right?
  哦 这是个很红的苹果吧 是这样吗
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  Maybe he points his little light detector at it
  他可能会用一个光检测器对准苹果
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  and it reads out.
  仪器显示计量结果
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  It says, "This is such and such a frequency."
  数据表明 这光是多少多少频率的
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  And he says, "Oh, this is a very red apple,
  然后他会说出 噢 这苹果超红耶
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  much redder than that tomato" Or whatever.
  比西红柿还要红 诸如此类的话
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  But for all that,
  就算如此
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  we've got the notion,
  我们还是认为