You just once young but may be immature indefinitely.

I'm not afraid of losing, I'm afraid of not giving my best.

Intolerance of others’ views (no matter how ignorant or incoherent they may be) is not simply wrong; in a world where there is no right or wrong, it is worse: it is a sign you are embarrassingly unsophisticated or, possibly, dangerous.

人类最大的欺骗来自于自己的观点。

数学直觉就像肌肉一样 - 通过锻炼会变得更强大。

世界是我的国家，全人类是我的兄弟姐妹，行善是我的宗教。