Just as organic species evolve toward the use of greater densities of a wider variety of free-energy sources in their environment, so human societies… - Ervin László

We may not be the center of the universe and the telos of evolution, but we are concrete embodiments of cosmic processes in their particular terrestrial variation. And, albeit accidentally, we did happen to evolve a most remarkable property: self -reflection. In virtue of this we may be among the very few species of natural systems in the universe which are able not only to sense the world and respond to it, but to know their own sensations and come to reasoned conclusions about the nature of the universe. To be a man is thus to have the almost unique opportunity of getting to know oneself and the world in which one lives. It is surely shortsighted to disregard this opportunity and confine oneself solely to the business of living. A failure to exploit our capability for rational knowledge is, moreover, contrary to the business of living.

In some regions, under especially favorable conditions, the level of organization reaches that of enormously heavy organic substances, such as protein molecules and nucleic acids. Now the basic building blocks are given for the constitution of self-replicating units of still higher organizational level: cells. These systems maintain a constant flow of substances through their structures, imposing on it a steady-state with specific parameters. The inputs and outputs may achieve coordination with analogous units in the surrounding medium, and we are on our way toward multicellular phenomena. The resulting structures — organisms — are likewise steady-state patterns imposed steady-state patterns imposed on a continuous flow... The organic systems themselves, define the supra-organic (ecological or social) community. Ultimately the strands of communication straddle the space-time region within which the primary systems have come together, and those of its layers which provide conditions favorable to such structuration become organized as systems in their own right. We reach the level of the global (ecological, and on earth also sociocultural) system.

A system in one perspective is a subsystem in another. But the systems view always treats systems as integrated wholes of their subsidiary components and never as the mechanistic aggregate of parts in isolable causal relations.