People don’t notice whether it’s winter or summer when they’re happy.

有时候最简单的设计反而是最稳健的。

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.