ভূমিকা
Shiavault - a Vault of Shia Islamic Books Life under the Grace of Ethics Social units The most critical issue in the social life is that how we can form a great and powerful unit from the small units. Man's society has been in the form of various small and great units from the beginning days. Following affairs have caused this variety and scattering.
1- Race First of all, development of family and branching of different families from one family has been the origin of formation of a race, tribe and consequently a social unit, and in fact the first social colour of man is the same colour of race and tribe, and at present too, in the retarded societies, the issue of tribe and race forms the foundation of society, and in some cases, it is so strict that mixing of bloods of two tribes is strictly forbidden.
2- Geographical area Different tribes, which were separated by race and blood, were gradually mingled, and formed the greater social units, being separated by various geographical areas. At the beginning, geographical borders had a natural aspect, for example, a valley or big river and or high mountains were sufficient for separating two nations. However, it found an arbitrary aspect, and the natural borders were somehow invalidated by different contracts.
Although, still in most parts of world, natural borders form the geographical borders, for instance, the separation of Britain from France, and China from Japan, and such like are all caused by natural borders, but surely, the border of all countries are not determined by natural borders. 3- Ideology Finally, formation of social units was based on belief, mentality, and ideology in the more perfect societies. Man understood soon that the issue of race and tribe could not separate the individuals.
It is true that consanguine individuals have more common features in the physical and spiritual aspects, but this is never so critical to avoid their coexistence. And it is easily perceived that difference of geographical areas, either natural or arbitrary, cannot cause separation, especially when the issue of geographical distance was totally solved through the facility of communication and transportation means, and all parts became close to each other.
So, little by little the social units changed into belief and ideological units, and mental borders replaced previous ones. Division of world's countries into two communist and capitalist blocks is one of the manifest samples of this sort of classification.