要理解宇宙,你必须理解它所用的语言,那就是数学。
The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.
Be thankful for what you have; you’ll end up having more. If you concentrate on what you don’t have, you will never, ever have enough.
If you don’t make mistakes, you’re not working on hard enough problems. And that’s a big mistake.