Abstract

The Systems Theory is a complex theory (yet it is not identical to recent theories of complexity). The intention of this qualification is to demonstrate that the concept of a system is a complex basic concept of scientific thinking. This means that it is defined in terms of various elementary basic concepts brought together in its explication. The definition given by Von Bertalanffy to the concept of a system employs conceptual elements coming from at least five prominent conceptual clusters. In order to highlight the nature and interrelations between these clusters this article focuses upon perennial philosophical issues which present themselves within the definition of a system. They are those of stability and change, the one and the many (unity and multiplicity), the whole and its parts, and the relation between the material and the vital. An analysis of the interrelations between these clusters provides the basis for an assessment of the scope and limitations Von Bertalanffy's concept of a system. S. Afr. J. Philos. Vol.21(3) 2002: 163-179