Though the discipline encompasses almost all aspects of the individuals’ interaction with their social establishment, it pays particular heed in the exploration of the structure and functions of various social institutions and people’s association with them while leading a collective life as the members of society. Various sociologists-theorists have articulated their models and presented their theoretical frameworks in order to elaborate social structure and functioning; however, Comte, Spencer, Marx, Durkheim, Weber and Mills turn out to be the most influential ones in respect of determining the scope and boundaries of the discipline, by dint of their intellect, wisdom, knowledge and foresight; and the name of nineteenth century English phosphor Herbert Spencer (1820-1902) enjoys highly respectable place in the list of sociological theorists.
Hebert Spencer appears to be the most distinguished theorist while elaborating his sociological theoretical framework, by demonstrating the significant relationship of Sociology with all social and natural sciences on the one hand, and with every existing institution of society on the other. In addition, Spencer is the first one to identify social evolution theory by supporting the doctrine Survival of the Fittest even before the articulation of the doctrine by the illustrious biologist of all times i.e. Charles Darwin in 1859. Spencer determined the parameters of social evolution by establishing its strong relationship with biological evolution and explained the growth and survival of social structure in accordance with the Darwinian doctrine. While investigating into the Darwinians theory of natural selection, Spencer concluded that the laws of biology could be suited for and combined with social theory to explain the enormously stratified Western societies of the 19th century. (Leyva, 2009:367) Thus, he has supported the very notion that the determination of the fittest stratum is not only on the