I've always been a very private person, but I've learned that it's okay to let people in.

数学证明的优雅在于其简洁和清晰。

不要让任何人掩盖你的光芒。

Safety isn't a cost—it's an investment in our most valuable resource: people.

一本书就是你握在手中的一个梦想。

一个个都说∶我是向上效法了尧、舜、夏禹、商汤、周文王、周武王的大道。”但所说的话却是互相攻击的，所行的事是截然相反的。