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.

如果攻击特别伤人，我总是非常高兴，因为我想，如果他们攻击个人，这意味着他们没有留下任何政治论点。

心灵不是一台需要被理解的机器，而是一个需要被体验的生命过程。

"Books are the plane, and the train, and the road. They are the destination, and the journey. They are home."