The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt, and the profoundest wisdom to know when it ought to be resisted, and when it be obeyed.

I’m just a kid trying to live my dreams.

开玩笑是件严肃的事情。

生活中唯一真正的失败是不忠于自己所知道的最好的东西。

能源的未来不仅仅是开采，还包括可持续性和对资源的负责任管理。

在数学中，最简单的问题往往导致最深刻的发现。