The best discoveries come from asking the right questions.

译文：古庙里黄叶堆积，寒雨萧瑟;青山上的荒坟笼罩着白云。为什么自从离开朱仙镇，就再也没听到岳飞将军胜利的消息?

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.