Causal inference is not just about statistical significance; it's about understanding the mechanisms behind the numbers.

【译文】 孔子说：“吃粗粮、喝白水、弯着胳膊当枕头，乐也在其中了！缺少仁义的富贵，对我来说，就象天上的浮云。”

不要让任何人减弱你的光芒。

写作的行为是一种勇气的行为。

做出伟大工作的唯一方法就是热爱你所做的事。

If you get all the facts, your judgment can be right; if you don't get all the facts, it can't be right.