我不是先知或石器时代的人，只是一个有超人潜力的凡人。

We've done price elasticity studies, and the answer is always that we should raise prices. We don't do that, because we believe -- and we have to take this as an article of faith -- that by keeping our prices very, very low, we earn trust with customers over time, and that that actually does maximize free cash flow over the long term.

一本好书是作者与读者之间的对话。

要说“我爱你”，首先必须能够说“我”。

幸福不是没有痛苦，而是有能力克服它。

The next generation of scientists will solve problems we can’t even imagine today.