In theory there is no difference between theory and practice; in practice there is.
Almost all of you have heard of the word Maya. Generally it is used, though incorrectly, to denote illusion , or delusion, or some such thing. But the theory of Maya forms one of the pillars upon which the Vedanta rests; it is, therefore, necessary that it should be properly understood.
In order that a new theory should constitute a discovery or step forward it should conflict with its predecessor ?it should contradict its predecessor; it should overthrow it. In this sense, progress in scienceor at least striking progressis always revolutionary.
In theory, everybody buys the best and cheapest commodities offered to him on the market. In practice, if every one went around pricing, and chemically testing before purchasing, the dozens of soaps or fabrics or brands of bread which are for sale, economic life would become hopelessly jammed.edward berays
A proven theorem of game theory states that every game with complete information possesses a saddle point and therefore a solution.richard arnold epstein
Mr. David Stockman has said that supply-side economics was merely a cover for the trickle-down approach to economic policy—what an older and less elegant generation called the horse-and-sparrow theory: If you feed the horse enough oats, some will pass through to the road for the sparrows.john kenneth galbraith
The theory community, myself included - became rather troubled about the particle.
It really is a nice theory. The only defect I think it has is probably common to all philosophical theories. It's wrong.saul kripke
The humanitarian in theory is the terrorist in action.isabel paterson
. . . The imperialism of the bureaucratic-collectivist states is different from that of the capitalist states. But the economic motive forces behind the one are no less powerful than in the case of the other. Only ignoramuses – people who know nothing about history and nothing about Lenin's theory of imperialism – can conceive of imperialism as a phenomenon unique to capitalist society.max shachtman
There are already scientists-- respected scientists in this country who do experiments on things that most people consider supernatural, such as prayer. When Newton proposed the theory of gravitation it was dismissed as supernaturalism because it was action at a distance. What constitutes supernaturalism in today's science may very well not be supernatural in tomorrow's science.jonathan wells
We are all agreed that your theory is crazy. The question that divides us is whether it is crazy enough to have a chance of being correct.niels bohr
No single theory ever agrees with all the facts in its domainpaul karl feyerabend
[T]ruly grand and powerful theories […] do not and cannot rest upon single observations. Evolution is an inference from thousands of independent sources, the only conceptual structure that can make unified sense of all this disparate information. The failure of a particular claim usually records a local error, not the bankruptcy of a central theory. […] If I mistakenly identify your father's brother as your own dad, you don't become genealogically rootless and created de novo . You still have a father; we just haven't located him properly.stephen jay gould
The subject is not just the theory of evolution, the subject is the reality of God.phillip e. johnson
Marx's third volume [of Capital ] contradicts the first. The theory of the average rate of profit and of the prices of production cannot be reconciled with the theory of value. This is the impression which must, I believe, be received by every logical thinker.karl marx
Every bit of theorizing I’ve ever done, including my interest in Berg, has come as a consequence of discoveries I made as a composer and interests that I developed as a composer. I never thought of my theory as being a kind of irrelevant activity to my composing.george perle
A religious creed differs from a scientific theory in claiming to embody eternal and absolutely certain truth, whereas science is always tentative, expecting that modification in its present theories will sooner or later be found necessary, and aware that its method is one which is logically incapable of arriving at a complete and final demonstration.bertrand russell
Music, also, the architect ought to understand so that he may have knowledge of the canonical and mathematical theory, and besides be able to tune ballistae , catapultae, and scorpiones to the proper key. For to the right and left in the beams are the holes in the frames through which the strings of twisted sinew are stretched by means of windlasses and bars, and these strings must not be clamped and made fast until they give the same correct note to the ear of the skilled workman.vitruvius
A modern theory of knowledge which takes account of the relational as distinct from the merely relative character of all historical knowledge must start with the assumption that there are spheres of thought in which it is impossible to conceive of absolute truth existing independently of the values and position of the subject and unrelated to the social context.
If quantum communication and quantum computation are to flourish, a new information theory will have to be developed.
Game theory, however, deals only with the way in which ultrasmart, all knowing people should behave in competitive situations, and has little to say to Mr. X as he confronts the morass of his problem.
General systems theory deals with the most fundamental concepts and aspects of systems. Many theories dealing with more specific types of systems (e.g., dynamical systems, automata, control systems, game-theoretic systems, among many others) have been under development for quite some time. General systems theory is concerned with the basic issues common to all these specialized treatments.
The Society for General Systems theory and its publication General Systems was a mixed bag. Few authors were actually doing research -they philosophized, and many prematurely resolved dilemmas by mathematical equations in a language poorly understood by the empirical investigator.