Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

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.

遗忘比绝望更强有力。