The essence of causal inference is to go beyond the data and ask what would happen if we intervene.
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。
弟子不必不如师，师不必贤于弟子。弟子超过老师，是很正常的事情，这也是正是老师所希望的。
Behavior is governed by the same laws in humans and animals.
测试程序的最好方法是测试它。
Trust is the expectation that arises within a community of regular, honest, and cooperative behavior, based on commonly shared norms, on the part of other members of that community.
海洋的健康就是我们未来的健康。