Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。
You have to be able to admit when you’re wrong and get out of a losing position quickly. The worst thing you can do is hold onto a losing trade hoping it will come back.
Always plan for the worst-case scenario.
做伟大工作的唯一途径就是热爱你所做的事。
Sometimes you have to be knocked down lower than you have ever been to stand back up taller than you ever were.
The true discovery of America is before us. The true fulfillment of our spirit, of our people, of our mighty and immortal land, is yet to come.
人生重要的不是胜利，而是战斗;不是要打败对手，而是要打得好。
如果你输不起，你也赢不起。
I don't want to make money, I want to make a difference.