The cognitive map is not a picture or a model in the head, but a dynamic, changing representation of the environment.

We triumph without glory when we conquer without danger.

The old-fashioned dictator does not exist under scientific management. The man at the head of the business under scientific management is governed by rules and laws which have been developed through hundreds of experiments just as much as the workman is.

当一件艺术品无法增减而不损害它时，它就是完整的。

你只活一次，但如果你做得对，一次就足够了。