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.
I disapprove of what you say， but I will defend to the death your right to say it.
智慧的真正标志不是知识，而是想象力。
