聪明人的特质就是，在笨蛋眼里他们看起来像疯子。

扩展的艺术概念是必要的。

真正的挑战不在于解方程，而在于理解解的含义。

The major credit I think Jim and I deserve... is for selecting the right problem and sticking to it.

We are like travelers who have lost their way； we must ask， each one， for directions from a passerby.

The only thing more painful than being an active forgetter is to be an inert rememberer.

即便真理没有带来便利，也要恪守它，因为你若企图掩盖真理，会带来更多的麻烦。