因果推断的本质是超越数据，询问如果我们干预会发生什么。
The essence of causal inference is to go beyond the data and ask what would happen if we intervene.
"Books are a way to explore the world, to understand different perspectives, and to develop empathy."
The value or worth of a man is, as of all other things, his price; that is to say, so much as would be given for the use of his power.
你不是在建立企业，而是在培养人，然后由人来建立企业。
我不是圣人，但我也不是罪人。