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

And when you’re down in the hole， when that moment comes， it’s really okay to feel bad for a little while. Give yourself time to mourn what you think you may have lost but then here’s the key， learn from every mistake because every experience， encounter， and particularly your mistakes are there to teach you and force you into being more who you are. And then figure out what is the next right move.

人类的思想是如此复杂，事物之间是如此纠缠，以至于要解释一片草叶，就必须绘制宇宙的图表。

史记

The greatest prison people live in is the fear of what other people think.