我认为数学之所以有价值，是因为它具有这种令人难以置信的结构，你可以探索和发现。
To be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others.
故事是生活的镜子，反映我们内心最深处的渴望和恐惧。
最伟大的旅程不是用英里来衡量的，而是用那些让你屏息的瞬间。
Take time every day to do something for yourself.