Mathematics is not a spectator sport. You have to do it to understand it.
数学不是一项观赏性运动。你必须亲自去做才能理解它。
The farmer is the only man in our economy who buys everything at retail, sells everything at wholesale, and pays the freight both ways.
Curiosity is the driving force behind every great scientific advancement.
我喜欢买入那些不受欢迎的股票。如果一只股票受欢迎,它可能被高估了。
One must still have chaos in oneself to be able to give birth to a dancing star.