The concept of quality, which comes from physiology, refers to some physiological and anatomical features of organisms, mainly the nervous system, especially the brain, sensory organs and motor organs. They are obtained by heredity, so they are also called genetic qualities. Quality is the natural premise of the formation and development of ability, and it plays a material basis and a necessary condition in human development. The quality mentioned in this paper is a concept in sociology and pedagogy, which refers to the basic quality of citizens or some specialized talents, such as national quality, national quality, cadre quality, teacher quality, writer quality and so on. Are formed by individuals under the influence of acquired environment and education. Generally speaking, quality refers to the physical and psychological characteristics that individuals are born with, as well as the basic qualities acquired through environment and education. Inherent genetic quality is the material premise of acquired basic quality, and acquired environment and education are the conditions for the development of innate genetic quality. Quality is the necessary foundation and condition for a person to engage in a certain job.

At present, there are five main views on the basic theory of human quality: one is the "factor theory", which holds that human quality is composed of many factors such as morality, intelligence and physical strength; The second is "constitution theory", which holds that people's quality is composed of natural physiological quality (congenital inheritance), social and cultural quality (acquired) and psychological quality (personality); The third is "development theory", which holds that people's quality is formed by three stages of development, that is, from the all-round development of the mind (observation, memory, thinking, imagination, practical ability, etc. ) to the all-round development of body and mind (the unity of physical quality and psychological quality), and then to the coordinated development of individuals and society (the formation of ideas, abilities, personalities, etc. ); The fourth is the "ability theory", which holds that people's quality is not the static sum of various factors, but dynamic, and the change of any one factor will affect the change of overall quality, and that quality is ability (in fact, ability is only the external expression of quality); The fifth is the "unification theory", which holds that people's quality is the unity of its constituent elements "quality" and "quantity", the unity of dynamic and static, with integrity, sociality and adaptability. In a word, people's quality refers to the subjective quality of people developed through education and social practice on the basis of innate endowment, that is, the systematic synthesis of people's moral, intellectual, physical and aesthetic qualities and their expressive ability.