The key to credible causal inference is not just the method, but how well the method fits the question at hand.
我们在童年时读的书就像一个秘密花园,一个我们可以逃离和梦想的地方。
Are you upset, little friend? Have you been lying awake worrying? Well, don't worry. I'm here. I'm here to give you reassurance. Everything is all right. The famine will end...the sun will shine tomorrow...