All good books have one thing in common - they are truer than if they had really happened.
发现的喜悦无疑是人类心灵所能感受到的最活跃的喜悦。
人类行为的首要原则是,一个人会做他认为能满足自己欲望的事情。
所有模型都是错误的,但有些是有用的。