We must be free not because we claim freedom, but because we practice it.

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

真相是美丽而可怕的东西，因此应该非常谨慎地对待。

最伟大的发现来自于提出最简单的问题。

这就好像三军打败战，落伍的人还要求奖赏一样。 

Innovation is not about doing something completely new, but about doing it better than anyone else.