我唯一知道的是我一无所知。

"Causal inference requires careful thought about the assumptions underlying your analysis."

That's exhilarating if you're doing well, and very crushing if you're not. It leads, in the worst cases -- in the analysis of a sociologist like Emil Durkheim -- it leads to increased rates of suicide. There are more suicides in developed, individualistic countries than in any other part of the world. And some of the reason for that is that people take what happens to them extremely personally -- they own their success, but they also own their failure.

团结使我们强大，分裂使我们弱小。

Success comes from focusing on the long-term, not just short-term gains.

"I love the challenge of playing against the best players in the world."