Complexity and contradiction are not problems to be solved, but opportunities to be explored.

The tyranny of a prince in an oligarchy is not so dangerous to the public welfare as the apathy of a citizen in a democracy.

写吧，否则就会死去。

I'm not good at life, but I'm good at music.

If you say you want to automate cars and save people’s lives, the skills you need for that aren’t taught in any particular discipline. I know – I was interested in working on automating cars when I was a Ph.D. student in 1995.