哲学上的错误比数学上的错误要严重得多。

The most dangerous poison is the feeling of achievement. The antidote is to think like a beginner every morning.

Make no mistake about it: Computers process numbers - not symbols. We measure our understanding (and control) by the extent to which we can arithmetize an activity.

The more you know who you are, and what you want, the less you let things upset you.