物理学的美丽在于它能够用最深刻的理论解释最简单的现象。

The reason I run is to define life.

解析：比喻立志用功需要循序渐进。

The greatest discovery is that human beings can alter their lives by altering the attitudes of their minds.

释义：不能因为相貌低估一个人，就如同不能用斗去度量海水。

可持续性不再是选择，而是我们对后代的责任。