We know that man has a social life, and undoubtedly, society is the most important factor in development, improvement and or retardation and degeneration of men.

The sociologists believe that man without society loses everything (sciences and knowledge, mental perfection, affections, and even speaking and similar subjects).

The situation of children being isolated from the human society for any reason, and trained in an inhuman environment, like forest, besides wild animals, proves this matter. In history, we have repeatedly observed such children. Neither they could speak and comprehend high concepts of human life, nor there was any trace of humanistic affections in them, and their behavior and deed was just like wild animals of forest!

Observing the situation of desert wanderers and nomadic tribes, whose society is very limited and small, and their communication with others is less, is a good proof for showing that if man loses the society, what will be his destiny!

This and a lot of other evidences exactly approve the belief of sociologists that society is prior to the individual. Of course, an individual as a living being may be prior to the society, but as a human, he will not be prior to the society.

And also for this reason, the more social relations of man develop, the more his civilization, although in special aspects, improves.

Facility of communication tools in the present world, which has caused more proximity and contact of individuals, is one of the main causes of formation of present civilization, and also is considered as a criterion for assessment of degree of civilization in different countries of world.