数学的力量在于它的普遍性和抽象性。

赏析：描述了人在梦中不知道自己在做梦，醒来后才知道是梦的现象，引发了对人生如梦的思考。

The key to success is understanding and meeting the needs of others.

If you don’t take risks, you’ll never know what you could have achieved.

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.

如果一个人行为不端正，内心不纯洁，那么权势和富贵都会像云烟一样消散。