It's not the tools you have faith in – tools are just tools – they work， or they don't work.It's people you have faith in or not.

真相很少是纯粹的，也从不简单。

游戏是儿童的工作。

一切皆有原因。

好的研究就像好的故事——有开头、中间和结尾，逻辑连贯。

做数学就是参与发现与猜想、直觉与灵感的过程。

I've learned that you can't control what other people think of you, but you can control what you think of yourself.

Twenty years of romance make a woman look like a ruin; but twenty years of marriage make her look like a public building.