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"The freedom to be yourself is a gift only you can give yourself. But once you do, no one can take it away."
The best way to learn econometrics is by doing—working with real data and real problems.
在这个无意义的世界里,追求快乐是唯一赋予生命意义的事情。
The whole art of teaching is only the art of awakening the natural curiosity of young minds for the purpose of satisfying it afterwards.