The universe would look to a two-dimensional creature who spend its life moving on the service of what turned out to be a globe， it could travel for millions of years and would always return to its starting point， it would never be conscious of what was above it or beneath it.

用智慧的眼光看待世界。

未来属于那些能够跨越界限合作的人。

一个好的数学问题的定义是它产生的数学，而不是问题本身。

物理学的美丽在于它能够用简单的原理描述复杂的事物。

世界上最伟大的事情就是知道如何属于自己。