“It is a testimony to the power of education that classical mechanics could operate for so long under a mistaken conception. Teaching and research concentrated on integrable systems, each feeding the other, until in the end we had no longer the tools nor the interest for studying nonintegrable systems.”

Source: The Best of All Possible Worlds (2006), Chapter 4, From Computation To Geometry, p. 84.

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Ivar Ekeland18

French mathematician 1944

Harold Chestnut (1917–2001) American engineer

Source: Systems Engineering Tools, (1965), Systems Engineering Methods (1967), p. 1: First paragraph of Ch. 1. The Environment for System Engineering Methods

“In contrast to the arbitrarily complicated evolution of a (nonintegrable) classical system, all a quantum state ever does is move in circles.”

Sean Carroll (1966) American theoretical cosmologist

FQXi Prize winning essay What if Time Really Exists? http://fqxi.org/community/forum/topic/318, 2008.

“The universe of all things that exist may be understood as a universe of systems where a system is defined as any set of related and interacting elements. This concept is primitive and powerful and has been used increasingly over the last half-century to organize knowledge in virtually all domains of interest to investigators. As human inventions and social interactions grow more complex, general conceptual frameworks that integrate knowledge among different disciplines studying those emerging systems grow more important. Living systems theory (LST) instructs integrative research among biological and social sciences and related academic disciplines.”

James Grier Miller (1916–2002) biologist

G. A. Swanson and James Grier Miller (2013) " Living Systems Theory http://www.eolss.net/Sample-Chapters/C02/E6-46-01-03.pdf" in Systems Science and Cybernetics. Vol I.

“The development (rather than the history) of operations research as a science consists of the development of its methods, concepts, and techniques. Operations research is neither a method nor a technique; it is or is becoming a science and as such is defined by a combination of the phenomena it studies.”

Russell L. Ackoff (1919–2009) Scientist

Source: 1950s, The development of operations research as a science, 1956, p. 265, the lead paragraph ; Cited in: Joe Kelly (1969) Organizational behaviour. p. 26.

“In the last two decades we have witnessed the emergence of the "system" as a key concept in scientific research. Systems, of course, have been studied for centuries, but something new has been added… The tendency to study systems as an entity rather than as a conglomeration of parts is consistent with the tendency in contemporary science no longer to isolate phenomena in narrowly confined contexts, but rather to open interactions for examination and to examine larger and larger slices of nature. Under the banner of systems research (and its many synonyms) we have also witnessed a convergence of many more specialized contemporary scientific developments… These research pursuits and many others are being interwoven into a cooperative research effort involving an ever-widening spectrum of scientific and engineering disciplines. We are participating in what is probably the most comprehensive effort to attain a synthesis of scientific knowledge yet made.”

Russell L. Ackoff (1919–2009) Scientist

Ackoff (1959), "Games, Decisions and Organizations," General Systems, 4 (1959), p. 145-150; cited in: Ludwig von Bertalanffy (1968) General System Theory. p. 9.
1950s

“In June of 1964 the research group and academic program moved to Penn bringing with it most of the faculty, students, and research projects. Our activities flourished in the very supportive environment that Penn and Wharton provided. The wide variety of faculty members that we were able to involve in our activities significantly enhanced our capabilities. By the mid-1960s I had become uncomfortable with the direction, or rather, the lack of direction, of professional Operations Research. I had four major complaints.
First, it had become addicted to its mathematical tools and had lost sight of the problems of management. As a result it was looking for problems to which to apply its tools rather than looking for tools that were suitable for solving the changing problems of management. Second, it failed to take into account the fact that problems are abstractions extracted from reality by analysis. Reality consists of systems of problems, problems that are strongly interactive, messes. I believed that we had to develop ways of dealing with these systems of problems as wholes. Third, Operations Research had become a discipline and had lost its commitment to interdisciplinarity. Most of it was being carried out by professionals who had been trained in the subject, its mathematical techniques. There was little interaction with the other sciences professions and humanities. Finally, Operations Research was ignoring the developments in systems thinking — the methodology, concepts, and theories being developed by systems thinkers.”

Russell L. Ackoff (1919–2009) Scientist

Preface, cited in Gharajedaghi, Jamshid. Systems thinking: Managing chaos and complexity: A platform for designing business architecture http://booksite.elsevier.com/samplechapters/9780123859150/Front_Matter.pdf. Elsevier, 2011. p. xiii <br class="br">Towards a Systems Theory of Organization, 1985

“Because the Systems Age is teleologically oriented, it is preoccupied with systems that are goal-seeking or purposeful, that is, systems that can display choice of either means or ends, or both. It is interested in purely mechanical systems only.”

Russell L. Ackoff (1919–2009) Scientist

Source: 1970s, Redesigning the future, 1974, p. 18.

“Despite the importance of systems concepts and the attention that they have received and are receiving, we do not yet have a unified or integrated set (i. e., a system) of such concepts. Different terms are used to refer to the same thing and the same term is used to refer to different things. This state is aggravated by the fact that the literature of systems research is widely dispersed and is therefore difficult to track. Researchers in a wide variety of disciplines and interdisciplines are contributing to the conceptual development of the systems sciences but these contributions are not as interactive and additive as they might be.”

Russell L. Ackoff (1919–2009) Scientist

As cited in: Journal of systems management. Vol. 25, p. 39. Association for Systems Management, 1974.
1970s, Towards a System of Systems Concepts, 1971

“When every event was a miracle, when there was no order or system or law, there was no occasion for studying any subject, or being interested in anything excepting a religion which took care of the soul. As man doubted the primitive conceptions about religion, and no longer accepted the literal, miraculous teachings of ancient books, he set himself to understand nature. We no longer cure disease by casting out devils.”

Clarence Darrow (1857–1938) American lawyer and leading member of the American Civil Liberties Union

Why I Am An Agnostic (1929)

“With the subsequent strong support from cybernetics, the concepts of systems thinking and systems theory became integral parts of the established scientific language, and led to numerous new methodologies and applications -- systems engineering, systems analysis, systems dynamics, and so on.”

Fritjof Capra (1939) American physicist

Source: The Web of Life (1996), p. 46.

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Ivar Ekeland18

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