The causal approach is about understanding the mechanisms that generate the data.
唯有浅薄的人需要用数年挣脱一种情感。一个人当得了自己的主人,便可轻易终结哀伤,轻易制造快乐。
最好的想法往往来自最意想不到的地方。
Human freedom is bounded by its choices.