最重要的是对自己和观众诚实。
The most important thing is to be honest with yourself and with your audience.
You can't go through life with a catcher's mitt on both hands. You need to be able to throw something back.
The only thing that can make you brave is your own fear.
The only way to achieve the impossible is to believe it's possible.
The key to success in machine learning is not just the algorithm, but the data.
除非我们完全接受自己的现状，否则我们无法改变，无法摆脱现在的自己。
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.