The study of psychology is the study of life's wisdom.

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

"The unexamined life is not worth living."

The behaviorist cannot find consciousness in the test-tube of his science.

不了解敌情，不可以行军打仗，不熟悉洋人的情况，不可以远谋。