ABSTRACT
In the nineteenth century men came to realize that all human activity ran its course within society and that nothing could withdraw itself from its influence. It was consequently deduced that everything which was not science of external nature must be science of society. The term "sociology" has been used in connection with certain problems regarding society and the social sciences which are in the last analysis problems of a philosophical nature. Sociology as a special science might find its subject-matter in a similar fashion by drawing a new line through facts which, as such, are quite well known. It would need only the unifying concept which should co-ordinate into a new synthesis the similar aspects lying along that line. In order to differentiate the various fields of scientific inquiry from the unitary and complex actuality, it is necessary to abstract from that actuality the similar and related phenomena by means of such synthesizing concepts.
