SOCIAL DIFFERENTIATION 197

It is the social differentiation which has brought about
this better distribution of freedom and restraint. It has
destroyed the forced combination of heterogeneous individuals
 and of heterogeneous interests of individuals in allinclusive
 groups, and has created a social structure made
up of associations that unite the homogeneous elements of
heterogeneous circles. As a sociological form, this process
of differentiation and integration manifests itself in the
most varying social contents. But in the last analysis it is
itself only a specific manifestation of a basic mental funetion
 which is operative in all fields of mental activity and
most clearly manifest in the association of ideas.

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