这封信是达尔文为感谢美国地质学家费迪南德·范德维耶·海登博士而写的。

The letter was written by Darwin to thank an American geologist, Dr. Ferdinand Vandeveer Hayden.

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我看到妇女和儿童为得到一袋价值不足5便士（8美分）的水而跳舞并歌唱他们的感谢。

I watched as women and children danced and sang their thanks for one sachet of water that costs less than 5p (8 US cents).

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我们感谢我们获得安全，让我们感谢那些为让安全成为可能而牺牲的人，不论他们在何处。

And as we give thanks for our security, let's in turn thank those who've sacrificed to make it possible, wherever they may be.

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