— Ian Stewart, The Collapse of Chaos: Discovering Simplicity in a Complex World
„We should continue to use simple models where they capture enough of the core underlying structure and incentives that they usefully predict outcomes. When the world we are trying to explain and improve, however, is not well described by a simple model, we must continue to improve our frameworks and theories so as to be able to understand complexity and not simply reject it.“
„The equilibrium… in order to become static—should be steady, permanent, lasting. …This type of equilibrium… is… independent of any scale. A reduced model will show the same effects as the proper structure. Experiments on models are simple and… instrumental for understanding such structural problems.“
— Eduardo Torroja Spanish architect 1899 - 1961
Philosophy of Structures (1958)
„The problem is not the math itself, but the blind acceptance and even idolatry we have applied to the quantitative models. These predictive models leave citizens befuddled and unable to defend or criticize model-based decisions. We argue that we should accept the fact that we live in a qualitative world when it comes to natural processes. We must rely on qualitative models that predict only direction, trends, or magnitudes of natural phenomena, and accept the possibility of being imprecise or wrong to some degree. We should demand that when models are used, the assumptions and model simplifications are clearly stated. A better method in many cases will be adaptive management, where a flexible approach is used, where we admit there are uncertainties down the road and we watch and adapt as nature rolls on.“
— Orrin H. Pilkey American ecologist 1934
Useless Arithmetic: Why Environmental Scientists Can’t Predict the Future (2007), Interview with Orrin Pilkey & Linda Jarvis-Pilkey https://web.archive.org/web/20080105132439/http://www.columbia.edu/cu/cup/publicity/pilkeyinterview.html.
„Different from a great part of the world, we in America persist in our belief in individual enterprise and in the profit motive; but we realize we must continually seek improved practices to insure the continuance of reasonable profits, together with scientific progress, individual initiative, opportunities for the little fellow, fair prices, decent wages and continuing employment.“
— Franklin D. Roosevelt 32nd President of the United States 1882 - 1945
1930s, Fireside Chat in the night before signing the Fair Labor Standards (1938), Context: The Congress has provided a fact-finding Commission to find a path through the jungle of contradictory theories about wise business practices — to find the necessary facts for any intelligent legislation on monopoly, on price-fixing and on the relationship between big business and medium-sized business and little business. Different from a great part of the world, we in America persist in our belief in individual enterprise and in the profit motive; but we realize we must continually seek improved practices to insure the continuance of reasonable profits, together with scientific progress, individual initiative, opportunities for the little fellow, fair prices, decent wages and continuing employment.
„In practice, quantum mechanics merely gives predictions with probabilities attached. This should be considered as a normal and quite acceptable feature of predictions made by science: different possible outcomes with different probabilities. In the world that is familiar to us, we always have such a situation when we make predictions. Thus the question remains: What is the reality described by quantum theories? I claim that we can attribute the fact that our predictions come with probability distributions to the fact that not all relevant data for the predictions are known to us, in particular important features of the initial state.“
— Gerardus 't Hooft Dutch theoretical physicist and Nobel Prize winner 1946
Q&A: Gerard 't Hooft on the future of quantum mechanics http://physicstoday.scitation.org/do/10.1063/PT.6.4.20170711a/full/, Physics Today, 11 July 2017
„Frameworks are white boxes to those that make use of them. Application developers must be able to quickly understand the structure of a framework, and how to write code that will fit into the framework. Frameworks are reusable designs as well as reusable code.“
— Rebecca Wirfs-Brock American software engineer 1953
Object-oriented design: a responsibility-driven approach (1989), p. 13
„A central lesson of science is that to understand complex issues (or even simple ones), we must try to free our minds of dogma and to guarantee the freedom to publish, to contradict, and to experiment. Arguments from authority are unacceptable.“
— Carl Sagan American astrophysicist, cosmologist, author and science educator 1934 - 1996
Billions and Billions: Thoughts on Life and Death at the Brink of the Millenium (1997), Chapter 14, "The Common Enemy".
— David Zindell, livro Neverness
Neverness (1988), Lyall Watson
„The final truth about a phenomenon resides in the mathematical description of it; so long as there is no imperfection in this, our knowledge of the phenomenon is complete. We go beyond the mathematical formula at our own risk; we may find a model or a picture which helps us understand it, but we have no right to expect this, and our failure to find such a model or picture need not indicate that either our reasoning or our knowledge is at fault. The making of models or pictures to explain mathematical formulas and the phenomena they describe is not a step towards, but a step away from reality; it is like making a graven image of a spirit.“
— James Jeans, livro The Mysterious Universe
The Mysterious Universe (1930)
„What's the point of having metamodels, and why should you care? Because models must be stated in a way that yields a common understanding among all involved parties, we need a way to specify exactly what a model means. Metamodels allow you to do just that: They specify the concepts of the language you're using to specify a model.“
— Stephen J. Mellor British computer scientist 1952
MDA Distilled. Principles of Model-Driven Architecture, 2003, p. 37.
„The Big Bang theory has been extremely successful in describing the history and evolution of the Universe, and new experiments and observations continue to confirm the basic predictions of this theory. But we do not yet know the answer to the question
What is the Universe made of?
The evidence for dark matter and dark energy has rewritten this question, redirected our efforts to address it — and strengthened the motivation for finding an answer. Dark matter and dark energy cannot be explained by our current model of fundamental physics; deciphering these mysterious substances will require a leap into a new realm of understanding, a theoretical upheaval that will rival the changes brought about by quantum mechanics and general relativity.“
— Evalyn Gates 1958
Einstein's Telescope: The Hunt for Dark Matter and Dark Energy in the Universe (2009), Epilogue : Dark Matter and Dark Energy: Keys to the Next Revoution, p. 267
„People aren't very good listeners, by nature … Part of being a good communicator is recognizing and understanding that and trying to make the complex simple. I try to capture a concept, an idea or a moment in a few words. If they remember it, job done.“
— Mike Tomlin head coach of the National Football League's Pittsburgh Steelers 1972
As quoted in "Inside Tomlin's style: Humility, words matter for Steelers coach" by Jarrett Bell, in USA Today (31 January 2009)
„The effectiveness of any model used to describe and understand behavior of a particular system as a whole ultimately depends on the degree to which that model accurately represents that system. Nevertheless, there have been and are situations in which application of deterministic or animate models to social systems have produced useful results for a short period of time. However, in a longer run, such mismatches usually result in less than desirable results because critical aspects of the social systems were omitted in the less complex model that was used.“
— Russell L. Ackoff Scientist 1919 - 2009
1990s, Ackoff (1999, p. 34) cited in: Michael C. Jackson (2000) Systems Approaches to Management. p. 234.
„Hey, you're gonna have to keep it simple for us folks! Keep the words simple so we can understand what you're talking about.“
— Ray Comfort New Zealand-born Christian minister and evangelist 1949
— Neal A. Maxwell Mormon leader 1926 - 2004