From the sociological point of view, the normal man is an individual who lives in society and whose mode of life is so adapted that society derives a certain benefit from his life style. From the psychological point of view, he has enough energy and courage to meet the problems and difficulties of life as they come along.
Social interest is the inevitable compensation for all the natural weaknesses of human beings.
The human being is clearly a social being, needing a much longer period of dependence upon others before maturity than any animal. As long as the feeling of inferiority is not too great, a person will always strive to be worthwhile and on the useful side of life, because this gives him the feeling of being valuable which originates from contribution to the common welfare. The child soon learns that his aims and goals in life are not attained without movement, striving and effort. Thus in order to reach fulfillment, the child adopts a strategy. Inferiority feelings influence the adoption of misguided and limiting safe solutions as survival strategies.