写作是一种自我救赎。

I don't care about being remembered, I care about what I'm doing right now.

I never guess. It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.

To me, you are still nothing more than a little boy who is just like a hundred thousand other little boys. And I have no need of you. And you, on your part, have no need of me. To you, I am nothing more than a fox like a hundred thousand other foxes.

Natural experiments are a powerful tool for understanding causal relationships in the real world.