Safety is the lifeline of the petroleum industry; it must never be neglected.

The character and destiny of a group are often determined by its inferior elements.

我不是榜样，我只是想做我自己。

The elegance of a proof is as important as its correctness.

一个值得花一年去追求的目标是，学习足够多的关于一个主题的知识，以至于你无法相信一年前的你是多么的无知。

我们生活在一个人们有越来越多的时间，但彼此之间的时间却越来越少的时代。