"The essential support and encouragement comes from within, arising out of the mad notion that your society needs to know what only you can tell it."

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

I don't think you should ever have to apologize for your excitement. Just because something's cliché doesn't mean it's not awesome.

幸福的门户就在你内心。

世界上有些地方，古老的神明仍在行走。

The greatest tragedy of modern life is that we have everything we want, but nothing we need.