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。

如果你说得出，那你就要做得到。

The key to successful investing is to have a strong understanding of the fundamentals, a disciplined approach, a clear understanding of the market, a long-term perspective, and a clear understanding of the risks and rewards.

永远在学习。世界在不断变化，你需要跟上。