成功者与失败者的唯一区别就是愿意付出努力和勇气。
不探索奇景，不穷尽幽深之处，就不足以谈论山水
想大事，想长远。最大的风险是不承担任何风险。
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.