你必须是自己幸福的最好判断者。
The cognitive map is not a picture or a model in the head, but a dynamic, changing representation of the environment.
我所拥护的文化概念本质上是一个符号学的概念。
Make no mistake about it: Computers process numbers - not symbols. We measure our understanding (and control) by the extent to which we can arithmetize an activity.