即使在坟墓里，一切也未必全失。

I've had to learn to fight all my life - got to learn to keep smiling. If you smile, things will work out.

The scientist is not a person who gives the right answers, he's one who asks the right questions.

心有成见，就好像用水浇石头，水一点都进不去；对事理不能领悟，则拘泥而不变通，一点都转动不得。