除非你相信对世界的知识以及由此产生的力量对人类具有内在价值，否则你不可能成为科学家。

真理和清晰是互补的。

The environment will appear different to different observers depending on what they are prepared to see.

I look back on the past, committed a felony little fool, I want to communicate with him and let him understand, but I can't do this, the boy would not see the, only my old trunk.

所有的真理一旦被发现，都很容易理解；关键在于发现它们。