You can’t be everything to everyone, but you can be everything to someone.

Those who dream by day are cognizant of many things which escape those who dream only by night.

I'm not a dialogue, I'm a chorus.

Love is not kind or honest and does not contribute to happiness in any reliable way.

Every problem in mathematics is a puzzle waiting to be solved, and the joy is in the solving.

The only thing that's really important is whether the work moves you or not.

不是逢人就苦苦称赞你，你既狂放又侠义还温文尔雅。