债券市场是世界上最聪明的市场。

纯数学在某种程度上是逻辑思想的诗歌。

Have a heart that never hardens, and a temper that never tires, and a touch that never hurts.

科学的进步不是一条直线，而是一个螺旋，总是在前进，又总是回到起点。

The young do not know enough to be prudent, and therefore they attempt the impossible – and achieve it, generation after generation.

You have to believe in yourself when no one else does.

想象力比知识更重要。知识是有限的，而想象力则包围着整个世界。