活着的当下就是一切。

我认为生活中最重要的事情就是敢于梦想。

The best teacher is the one who suggests rather than dogmatizes, and inspires his listener with the wish to teach himself.

科学应当为人类服务，而不是反过来。

The real adventure is not outside, but within.

I think it would be a disaster. The extraterrestrials would probably be far in advance of us. The history of advanced races meeting more primitive people on this planet is not very happy, and they were the same species. I think we should keep our heads low.

民主是唯一能够反映人类精神不屈不挠追求自由的制度。

真正的进步来自于挑战现状。