The purpose is for the progress of students, and the means and purpose coexist in the subject activities. Teachers often bring educational effect by exerting some influence on students' body and mind. The purpose of disciplinary action is not only to stop the negative purpose of some misconduct, but also to make the punished person know his mistakes and correct them.

The logical starting point of education:

The logical starting point of education is naturally the emergence of human society. The transformation from apes to humans is due to productive labor, and apes gradually formed a main mechanism with brain and hand as the core. The brain can think and the hands can operate, which makes people different from ordinary animals and become "advanced animals".

With the subject mechanism, it is possible to become a subject with practical cognitive ability, and human beings can upgrade themselves to the subject of understanding and transforming the objective world, thus turning the objective world into the object of human transformation and understanding. Understanding and transforming the objective world requires subjective ability. Human society is a form of existence created by human beings in social practice.