A mathematician's work is never done; there are always more problems to solve.
数学家的工作永无止境；总有更多的问题需要解决。
To forget is to betray; to remember is to resist.
出自北齐·颜之推《颜氏家训·勉学》。没有把天下所有的书读个遍，就不要信口雌黄的发表观点。
It is personalities, not principles, that move the age.
I'm not here to tell you what to think. I'm here to tell you to think.
Innovation is the ability to see change as an opportunity, not a threat.