The basic principle of human action is that people achieve this goal through their own goals. Everyone subjectively measures the value of things to themselves and sorts things with different values. He will choose something more important to himself as his goal and take corresponding measures to achieve it.

A normal person must have deductive reasoning ability. This is also a person's basic ability to understand the world. Evaluating the value of things may be irrational, but people need to take measures to achieve their goals through deductive reasoning. He is rational. Although he made mistakes in the means to achieve his goal, he also made mistakes in the process of reasoning.

One thing can effectively relieve his current discomfort, so he thinks it is the most important thing.

In the field of human activism, things have no objective value. Of course, in the field of physical chemistry, the quality of an iron nail and the calorific value produced by the combustion of a piece of coal are objective. Ideas determine the value of things, so the value of a single thing is different in different periods. The total value of many homogeneous things is not the superposition of the value of each unit.

History and economics belong to the category of human action, because history is the result of individual action. Human behaviorism only follows two basic principles: the law of causality and teleology. People's actions follow these two principles in time and space.

Only one person can take action, and there is no problem of group action. It is usually said that a certain party or a certain country takes certain measures, but it is actually talking about a certain person in a certain group, and a certain group of people make plans or lives through arbitrariness or consultation. Give it to several other people to carry out. Every action of these people will produce corresponding results.