Man is like the rest of the creatures of the world, though he differs from the others in that he enjoys the faculties of intellect and thought while other creatures lack these abilities. In addition, his living socially and his forming society are primary elements in his life. However, man has not shifted from individual life to the social life; he has an intrinsic tendency to live socially. What made man live a social life and interact with others is to meet the natural needs of his daily life and to benefit from the intellectual achievements and endeavors of others to live better and grow both materially and spiritually. These natural needs and the endeavors made to meet them are considered as the main sources of the formation of human society. This article investigates the viewpoint of Allameh Tabataba’i on characteristics of man, particularly his social life, the origin of the human society, and man’s tendency to establish social justice.