每个项目都必须回应其背景,不仅是物理上的,还包括社会和历史的。
随机实验是因果推理的黄金标准,但它们并不总是可行的。
I don't know what I would do if I didn't act. I think I would go mad.
Let us not to take ourselves too serious. None of us has a monopoly on wisdom.