"Social differentiation is a universal characteristic of human societies. Early human societies survived and became dominant among animal species because of their superior social organization — that is, their more elaborate division of labor and consequent close coordination of activities."

“In modern science, in fact, let alone modern systems theory, cause disappears wherever you have a very complex system of interrelated elements.”

“A second dimension of stratification in modern societies is the status order. The term status as used in this study refers to the differentiation-of-prestige and deference among individuals and groups in society.”

“As a suggested working definition, we may define power as control or influence over the actions of others to promote one's goals without their consent, against their "will," or without their knowledge or understanding.”

“A more viable model, one much more faithful to the kind of system that society is more and more recognized to be, is in process of developing out of, or is in keeping with, the modern systems perspective . Society, or the sociocultural system, is not, then, principally an equilibrium system or a homeostatic system, but what we shall simply refer to as a complex adaptive system.”

“The notion of system we are interested in may be described generally as a complex of elements or components directly or indirectly related in a network of interrelationships of various kinds, such that it constitutes a dynamic whole with emergent properties.”

“This book is intended as an exploratory sketch of a revolutionary scientific perspective and conceptual framework as it might be applied to sociocultural systems. This point of view and still developing framework, as interpreted here, stems from the General Systems Research movement and the now closely allied fields of Cybernetics and information or communication theory.”