Nothing is a waste of time if you use the experience wisely.

能源的未来不是非此即彼，而是兼收并蓄。

我专注于我能控制的事情，我无法控制人们对我的看法或言论。

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.