Opposed to atomism and behaviorism, the systems view of man links him again with the world he lives in, for he is seen as emerging in that world and … - Ervin László

Systems at each level of integration function as wholes with respect to their parts and parts with respect to higher level wholes.

Yet while they exist, regardless of how long, each system has a specific structure made up of certain maintained relationships among its parts, and manifests irreducible characteristics of its own.

In the contemporary systems view man is not a sui generis phenomenon that can be studied without regard to other things. He is a natural entity, and an inhabitant of several interrelated worlds. By origin he is a biological organism. By work and play he is a social role carrier. And by conscious personality he is a Janus-faced link integrating and coordinating the biological and the social worlds. Man is, in the final analysis, a coordinating interface system in the multilevel hierarchy of nature.