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.
要改变一个人，必须改变他对自己的认知。
The less you know, the more you believe.
Stay hungry, stay foolish.
In all things， it is necessary to create a system.
技术的本质绝不是任何技术性的东西。
你能做的最好的投资就是投资自己。
成功不是拥有的，它是租来的，而且每天都要付租金。
晏子春秋