If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.

The most important thing is that we develop an interest in the world and take joy in our fellow human beings.

艺术的本质功能是道德的。

The greatest education in the world is watching the masters at work.

计算的目的是洞察，而不是数字。