I'm not a fashionista, I'm a fashion.

The key to credible causal inference is not just the method, but how well the method fits the question at hand.

这个世界惟有两样东西让我们的心灵感到深深的震撼，一是我们头顶上灿烂的星空,一是我们内心崇高的道德法则。

The opportunity does not go hand in hand, so when they come, you’d better hold them.

Sometimes you have to be a little bit naughty.