The key to credible causal inference is not just the method, but how well the method fits the question at hand.
数据是新时代的石油,但提炼出价值才是关键。
可持续增长的关键是在经济进步和环境责任之间取得平衡。
你可以通过一个人的回答来判断他是否聪明。你可以通过一个人的问题来判断他是否明智。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.