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.

做出伟大工作的唯一方法就是热爱你所做的事情。

The true essence of a story is not in its plot, but in the emotions it evokes.

一个物品的旅程可以告诉我们比物品本身更多的东西。