生活中最大的荣耀不在于从不跌倒，而在于每次跌倒后都能站起来。
You can't just sit there and wait for people to give you that golden dream. You've got to get out there and make it happen for yourself.
When I got to 40 or so... I had the sense when I looked back over my life I would actually see a mess of decisions， a few of which I had thought about， some of which I had sort of stumbled on， and many that I had no control over whatsoever.
The truth is that we are all capable of great evil, given the right circumstances.
在数学中，你不是理解事物，你只是习惯了它们。