方程式对我更重要，因为政治只看眼前，而方程式是永恒的。

To write is to fight against oblivion.

写作的行为就是一种抵抗的行为。

The worth of a state， in the long run， is the worth of the individuals composing it.

【释义】依靠暴力使人服从，不是真心服从，只是力量不足以进行反抗；只有依靠道德使人服从，人家才会心悦诚服。

Time is not the medicine, the medicine is in time.

我认为生活中最重要的事情就是敢于梦想。

美好的生活是一个过程，而不是一种存在状态。它是一个方向，而不是一个终点。

种一棵树最好的时间是20年前，第二好的时间是现在。

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.