In the history of psychology, different schools of psychologists have different understandings and explanations of healthy personality. Freud, the founder of psychoanalysis theory, believes that a healthy personality is the harmonious unity of ID, ego and superego-a healthy personality structure is balanced, and ego has enough power to identify reality and coordinate the conflicts among ID, environment and superego, so it can meet the needs, control and choose impulses reasonably, suppress their feelings less, and devote more time and energy to constructive work. Neo-psychoanalysts criticized Freud's biological determinism and emphasized social and cultural factors. For example, Adler believes that a healthy personality refers to having social interests, that is, being able to respect the existence value of others and having brotherly feelings for others. He attaches great importance to social interests, which is an important goal of personal growth. As long as he has social interest, he will not compete with others irrationally. Jung believes that a healthy personality means that individuals are aware of the suppressed "shadow" and show it in their own way of life, so as to transcend their initial "socialization" and find out the reasons for their depression. According to W. Reich, a healthy personality is not depressed, and you can express your feelings properly without "muscle armor". Behaviorists believe that healthy personality is ability and self-control, and this adaptability is based on the law of necessity reinforcement. As long as this law is followed, it is possible to meet the demand and avoid danger.