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可信因果推断的关键不仅是方法,还有方法与当前问题的契合度。
The key to credible causal inference is not just the method, but how well the method fits the question at hand.
凡事需多听但少言;聆听他人之意见,但保留自己之判断。
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
比喻要有长期坚持和忍耐的毅力。