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Man is born free， and everywhere he is in chains.

"There are two occasions when the sacred beauty of Creation becomes dazzlingly apparent, and they occur together. One is when we feel our mortal insufficiency to the world, and the other is when we feel the world's mortal insufficiency to us."

要快樂，我們不必太在意別人。

科學真正的回報在于知道你的工作可以拯救生命。