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The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
应对一个不自由的世界的唯一方法,就是变得如此绝对自由,以至于你的存在本身就是一种反叛。
只有理解,才能关心;只有关心,才会帮助;只有帮助,一切才能得救。
"Causal inference requires careful thought about the assumptions underlying your analysis."