Whether the possibility of psychological development provided by heredity can become a reality depends on the influence of social environment, the role of education and people's subjective initiative, that is, on acquired study and practice. A child born with sound mind and organs can't develop his intelligence and other personality qualities well without good environment and educational conditions and hard work. However, a child who has the same innate qualities on the whole can achieve higher intelligence and personality development if he lives in a better environment, receives a good education and works hard.

Many facts show that the environment has a great influence on individual psychological development. The survival and development of all living things are inseparable from the environment. The environment of human beings is essentially different from that of ordinary animals. The environment in which animals live is natural environment, and the development of animals is dominated by natural laws. Man's environment is a constantly changing social environment, and it is an environment for people to participate in practice. People develop themselves by accepting the accumulated knowledge and experience of human beings and actively changing the natural and social living conditions. Without social environment and social practice, people's psychology cannot develop in the direction of people. Kamala is an Indian "wolf child". He was adopted by wolves in his childhood and grew up among wolves. Kamala was nearly eight years old when he was discovered and brought back to human society, but his intelligence level was only equivalent to that of a six-month-old baby. This proves that if a healthy child is not in contact with human society after birth, it is not only impossible to learn to speak, but also impossible to develop normal intelligence and personality. At present, the study of early learning also provides valuable materials and evidence for the important role of environment and education in psychological development. Social living conditions and education determine the level, speed, direction and individual differences of children's psychological development.