当随机化不可行时,匹配方法可以是一个强大的工具。
"Matching methods can be a powerful tool when randomization is not possible."
Data tells you what's happening, but only intuition can tell you why.
I think the best movies are the ones that make you think, that challenge you.
Were it left to me to decide whether we should have a government without newspapers, or newspapers without a government, I should not hesitate a moment to prefer the latter.
The walls of the educational system must come down. Education should not be a privilege, so the children of those who have money can study.
思想的多样性会带来更好的解决方案——如果你没有感到不适,说明你并没有在成长。