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你再也回不了家了。

I always believe if you’re stuck in a hole and maybe things aren’t going well you will come out stronger.

即使我們把家園拋在身后，我們仍然把它們帶在心里。

合作和開放的心態在科學界是必不可少的，以推動我們所知的邊界。

我會用city而永不用Metropolis來表達城市，用cop而永不用policeman來表達警察，既然三丶四個字母可以賺七個美分，為什么要用長而贅的字呢？

那些不牢記過去的人，注定要重復過去發生的事。

創新需要勇氣，更需要堅持。

The opening up of new markets, foreign or domestic, and the organizational development from the craft shop and factory to such concerns as U.S. Steel illustrate the same process of industrial mutation—if I may use that biological term—that incessantly revolutionizes the economic structure from within, incessantly destroying the old one, incessantly creating a new one.

The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.

The history of the world is the history of the struggle for recognition.