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But the first people who were like ourselves lived so long ago that even their sagas, if they had any, are forgotten.

但是，和我們相似的原始人生活的年代太久遠了，因此，有關他們的傳說既使有如今也失傳了。

with their fellow scientists either in other countries or in universities,

和其他國家、其他大學同行們

if you think what it must be like to share the deck of a ship with several squadrons of jet aircraft,

因此，如果你能想像出同在一個甲板上是什么滋味兒的話，和幾個中隊的噴氣機。

as by falling into inaccessible caves, or into an ice crevasse, like the Siberian mammoths,

如掉進難以到達的洞穴，或掉進冰河裂縫里，或者像西伯利亞長毛象那樣掉進冰窟中，

We can perhaps forgive those who said the moons of Jupiter were produced by Galileo's spyglass if we recall that in his day, as for centuries before, curved glass was the popular contrivance for producing not truth but illusion, untruth;

如果我們回想一下伽利略之前幾個世紀期間，曲面鏡一直是一種用于產生幻影而不是產生真象的把戲裝置，那么我們就會原諒那些當時把伽利略觀察到的木星衛生說成是伽利略用他的小望遠鏡變出來的人們，

I never heard of anyone making a'skeleton', as we were taught at school.

我從未聽說過任何一位作家像我們在學校學的那樣，動筆前先列什么提綱。