Charles Horton Cooley 
Social Organization: A Study of the Larger Mind [PDF ebook] 

Our life is all one human whole, and if we are to have any real knowledge of it, we must see it as such. If we cut it up it dies in the process: the various branches of research that deal with this whole are properly distinguished by change in the point of sight rather than by any division in the thing that is seen. Social Organization: A Study of the Larger Mind is focused on the enlargement and diversification of intercourse, which is called Social Organization, the individual, though visible, remaining slightly in the background.