The study of mathematics is like air or gravity—it is everywhere, and you can't see it, but you know it's there.

"Die Wahrheit ist oft komplizierter, als sie scheint."

每一本书都是一个待发现的世界，充满了惊喜和教诲。

It is sadder to find the past again and find it inadequate to the present than it is to have it elude you and remain forever a harmonious conception of memory.

未来属于那些能够适应变化同时忠于核心价值观的人。

乐趣不在于拥有这个人。乐趣在于此。在房间里与另一个竞争者在一起。