The only limit to our realization of tomorrow is our doubts of today.

I always tell my kids, 'If you're going to do something, do it well. And if you're not going to do it well, don't do it at all.'

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。

我不考虑年龄。如果你继续努力工作，你可以继续前进。

Writing is like driving at night in the fog. You can only see as far as your headlights, but you can make the whole trip that way.

创新不仅仅是创造新事物，更是改进已有的事物。