做数学就是探索一个思想的宇宙，唯一的限制是你的想象力。

The time which we have at our disposal every day is elastic; the passions that we feel expand it, those that we inspire contract it.

My mother always said...If you don't like where you are…just picture where you wanna be.

宇宙不仅比我们想象的更奇怪，它比我们能想象的还要奇怪。

当你攻击煤炭时，你就是在攻击美国中部地区。

Diplomacy is to make your enemy your friend, not to make your friend your enemy.