The greatness of a man is not in how much wealth he acquires, but in his integrity and his ability to affect those around him positively.

数学的本质不仅在于解决问题，还在于提出正确的问题。

Most men die at twenty or thirty; thereafter they are only reflections of themselves.

I'm not gonna let you hurt me no more

如果你正在改变世界，你就是在做重要的事情。你会兴奋地起床。

我们是一个更大的生命共同体的一部分。