企业家精神就是永不言弃，在困难面前寻找机会。

There are two kinds of companies， those that work to try to charge more and those that work to charge less. We will be the second.

学习数学的唯一方法就是做数学。

Success is not about how much money you make, it's about the difference you make in people's lives.

不要看时钟；做时钟做的事。继续前进。

"Books are the way that we communicate with the dead. The way that we learn lessons from those who are no longer with us, that humanity has built on itself, progressed, made knowledge incremental rather than something that has to be relearned, over and over."

普通人与战士的区别在于，战士将一切视为挑战，而普通人将一切视为祝福或诅咒。