事实是，我们对生活知之甚少，我们真的不知道什么是好消息，什么是坏消息。

The essence of causal inference is to go beyond the data and ask what would happen if we intervene.

"No one can avoid becoming what others believe you to be."

【释义】天傲慢之心不可助长，欲望不可放纵，志气不可自满，享乐不可到达极点。