什么是心理学?

Let's begin with a formal definition of our subject: Psychology is the science of behavior and the mind. 

In this definition, behavior refers to the observable actions of a person or an animal. 

Mind refers to an individual's sensations, perceptions, memories, thoughts, dreams, motives, emotions, and other subjective experiences. It also refers to all of the unconscious knowledge and operating rules that are built into or stored in the brain and that provide the foundation for organizing behavior and conscious experience. 

Science refers to all attempts to answer questions through the systematic collection and logical analysis of objectively observable data. Most of the data in psychology are based on observations of behavior, because behavior is directly observable and mind is not; but psychologists often use those data to make inferences about the mind.

心理学的三个基本假设

心理学的研究方法

进一步了解心理学流派

Philip Zimbardo 在B站上的快问快答

不知名来源：10分钟了解心理学的流派