people they are. If refugees fight together, they are likely to defeat the robbers, but why not? The reason is that there is no self-confidence, and the robbers are very confident. They believe that their organizations are highly efficient. Refugees' lack of self-confidence is generally based on past experience. Some people once resisted and died, because others stood by. The robbers always unite in the battle, so they are invincible. These two different behaviors are the result of two games. In the system of refugees, there is no obligation relationship between people. You will not be punished if you don't help others. The robbers have an obligation relationship. If they do not help others, they will be punished by the boss.

Complex systems, mainly social organizations, are necessary to promote people's interests. People without organizations have low efficiency. In Beijing 1900, 100,000 people of the Boxer Rebellion Corps were incapable to conquer foreign embassies, which is guarded by 400 soldiers. Many peasant uprisings in history can only play a destructive role. Sometimes the masses of the people can burst out of positive energy, but the premise is that the problem is simple and clear. The improvement of organi- zational efficiency requires the evolution of social organizations. First, there is a need for scientific management methods, mainly clear responsibilities, rights and benefits. Secondly, there is advanced world outlook, social theory and social policies. The third is the wisdom of heroes. Famous politicians, military strategists, and scientists often play a key role in history.

The majority of the people are ordinary people. With limited knowledge, ability and self-cultivation, irra- tional thoughts and emotions can easily explode over large areas. Without the constraints of social organizations, these people may have tremendous destructive power, including plunder and massacre. At the same time, most people have a good desire to promote social progress and unlimited enthusiasm. The normal mass may contain enormous wisdom. However, without the scientific organization, these wisdom can hardly play a positive role. Carl Marx used class as the subject of action