不追求福运，就不会有灾祸；不计较所得，就不会有失去；不追求荣耀，就不会遭到辱没；不企冀美名，就不会遭到诋毁。

在一个国家中，一个公民的自由是对其他人的威胁。

I have to say to myself that some birds aren't very close. Their feathers are just too bright. When they fly away, you know it's a sin to lock them up, and you'll be inspired by them. Still, the place you live in is that much more drab and empty that they're gone. I think I really miss my friends.

面对失败时的坚持将成功的科学家与其他人区分开来。