"Knowledge" refers to cognition and concept, and cognition includes perception, consciousness, attention and memory. "Emotion" refers to emotion and emotion, which is composed of unique subjective experience, external performance and physiological activation. "Meaning" refers to the way of thinking, forming a fixed concept and will; "Behavior" refers to behavior and performance.

The whole process of knowing, feeling and acting is a gradual process, from understanding to moving, to thinking and acting; Some people's cognition and ideas are correct and reasonable, while others are incorrect and unreasonable. People's emotions are both positive and negative.

The quality of people's will is also different, and the essence of will is the subjective reflection of people's own behavior relationship. "Knowing, feeling and meaning" are the three steps of people's psychological activities, and behavior is the implementation process of the first three.

How to cultivate knowledge, emotion and action;

A person's moral character is composed of four psychological elements: knowledge, emotion, will and action. Moral education is a process of cultivating students' knowledge, feelings, intentions and actions.

Generally speaking, knowledge is the foundation of emotion, and emotion affects the improvement of knowledge. Action is the external expression of knowledge, emotion and intention, knowledge is the forerunner of action, and action is the purpose of knowledge. Therefore, when we implement moral education, we should integrate knowledge with practice, know it by reason, move it by emotion, guide it by action and persevere.

For a long time, both educational theorists and educational practitioners regard cultivating students' "knowledge, emotion, will and action" as a unique law in the process of moral education. In fact, cultivating students' "knowledge, emotion, will and action" is not a unique law in the process of moral education, but a universal law in the whole education process.