任何优秀的飞行员，无论他有多么高的天赋和丰富的经验，都不会不使用检查表。

学习的速度决定数字经济增长的速度。

I think it's very important to have a feedback loop， where you're constantly thinking about what you've done and how you could be doing it better.I think that's the single best piece of advice: constantly think about how you could be doing things better and questioning yourself.