在所有的动物中，只有人类是残忍的。他们是唯一将快乐建立在制造痛苦之上的动物。

Love all，trust a few ,do wrong to none.

We have to be careful not to become stylists.

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

Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.

I don't let anyone take away my power.