来自《耶鲁大学开放课程：新生有机化学 第1集 第1集》

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  Now there's an interesting thing here.
  这里有件很有趣的事
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  One of the devices on the title, on this frontispiece,
  在卷首插画上有个东西
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  is two pillars.
  是两根支柱
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  What in the world are they doing there?
  它们画在那儿做什么
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  Well they're the same pillars that you see on this.
  你们可以看到有两根相同的支柱
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  That's a piece of eight; you know, Treasure Island,
  这是八里亚尔币 金银岛中提到过
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  pieces of eight? See it's eight reales,
  八里亚尔币
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  and it came from the silver of Mexico;
  八里亚尔币的铸银来自于墨西哥
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  it was minted in Mexico City.
  是在墨西哥城铸造的
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  So and there you see the same pillars
  银币上有同样的支柱
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  and on them it says plus ultra; more beyond.
  上面写着plus ultra 超越更多
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  Beyond what? What are the pillars?
  超越什么 这些支柱代表什么