Top 1200 String Theory Quotes & Sayings - Page 7

Experience arises together with theoretical assumptions not before them, and an experience without theory is just as incomprehensible as is (allegedly) a theory without experience.

A sound Physics of the Earth should include all the primary considerations of the earth's atmosphere, of the characteristics and continual changes of the earth's external crust, and finally of the origin and development of living organisms. These considerations naturally divide the physics of the earth into three essential parts, the first being a theory of the atmosphere, or Meteorology, the second, a theory of the earth's external crust, or Hydrogeology, and the third, a theory of living organisms, or Biology.

First Theory . There is no Providence at all for anything in the Universe; all parts of the Universe, the heavens and what they contain, owe their origin to accident and chance; there exists no being that rules and governs them or provides for them. This is the theory of Epicurus.

Observation and theory get on best when they are mixed together, both helping one another in the pursuit of truth. It is a good rule not to put overmuch confidence in a theory until it has been confirmed by observation. I hope I shall not shock the experimental physicists too much if I add that it is also a good rule not to put overmuch confidence in the observational results that are put forward until they have been confirmed by theory.

To me this is the most beautiful, the most satisfactory from a scientific standpoint, the most logical theory of life. For thirty years I have leaned toward the theory of Reincarnation. It seems a most reasonable philosophy and explains many things.

Too often, business schools teach academic crisis management theory, if that, but given the diverse and unique nature of crises, all the theory in the world will not help you manage an actual crisis unless you know the basic mechanics.

There is no great harm in the theorist who makes up a new theory to fit a new event. But the theorist who starts with a false theory and then sees everything as making it come true is the most dangerous enemy of human reason.

In theory, practice should work like theory. In practice, it doesn't.

While the finish given to our picture of the world by the theory of relativity has already been absorbed into the general scientific consciousness, this has scarcely occurred to the same extent with those aspects of the general problem of knowledge which have been elucidated by the quantum theory.

People are always asking for the latest developments in the unification of this theory with that theory, and they don't give us a chance to tell them anything about one of the theories that we know pretty well. They always want to know things that we don't know.

The difference between theory and practice is larger in practice than the difference between theory and practice in theory.

[Knowledge is governed not by] a theory of knowledge, but by a theory of discursive practice.

In chess so much depends on opening theory, so the champions before the last century did not know as much as I do and other players do about opening theory. So if you just brought them back from the dead they wouldn't do well. They'd get bad openings.

It is clear that Economics, if it is to be a science at all, must be a mathematical science ... simply because it deals with quantities... As the complete theory of almost every other science involves the use of calculus, so we cannot have a true theory of Economics without its aid.

A theory is a good theory if it satisfies two requirements: it must accurately describe a large class of observations on the basis of a model that contains only a few arbitrary elements, and it must make definite predictions about the results of future observations.

The judgment that human life is worth living, or rather can and ought to be made worth living, ... underlies all intellectual effort; it is the a priori of social theory, and its rejection (which is perfectly logical) rejects theory itself.

I engage in the use of game theory. Game theory is a branch of mathematics, and that means, sorry, that even in the study of politics, math has come into the picture. We can no longer pretend that we just speculate about politics; we need to look at this in a rigorous way.

In 1989, I was awarded the Von Neumann Prize in Operations Research Theory by the Operations Research Society of America and The Institute of Management Sciences. They cited my works in the areas of portfolio theory, sparse matrix techniques and the SIMSCRIPT programming language.

I don't write anything that I haven't lived. In terms of integrity, you have to write what you live. And if you write beyond what you live, it is theory. And theory is not helpful. It is just not.

Most of all I like "bad" lines, that is those considered bad, in my opinion unjustly, by theory. The reason for the last quotation marks is that most so-called theory is only a collection of examples from master practice.

The classics of Marxism, while fully appreciating the significance of the Darwinian theory, pointed out the errors of which Darwin was guilty. Darwin's theory, though unquestionably materialist in its main features, is not free from some serious errors.

The 'law of wills and causes,' formulated by Comte, . . . is that when men do not know the natural causes of things, they simply attribute them to wills like their own; thus they obtain a theory which provisionally takes the place of science, and this theory forms a basis for theology.

To construct a scientific theory from the data and to be able to recognize that it is a reasonable theory is possible only if there are some very sharp restrictive principles that lead you to go in one direction and not in another direction. Otherwise, you wouldn't have science at all, merely randomly chosen hypotheses.

The theory of high-intensity, anaerobic, bodybuilding exercise is not true because I or anyone else, no matter how many might agree, say it is true. It is the fact that the logic of the theory is unassailable which makes it true.

The theory behind representative government is that superior men-or at least men not inferior to the average in ability and integrity-are chosen to manage the public business, and that they carry on this work with reasonable intelligence and honest. There is little support for that theory in known facts.

My work during the 1970s has been mainly concerned with the implications of the unified theory of weak and electromagnetic interactions, with the development of the related theory of strong interactions known as quantum chromodynamics, and with steps toward the unification of all interactions.

Coincidences, in general, are great stumbling blocks in the way of that class of thinkers who have been educated to know nothing of the theory of probabilities- that theory to which the most glorious objects of human research are indebted for the most glorious of illustration.

Thus evidence that contradicts the global warming theory, climate Chicken Littles enlist as evidence for the correctness of their theory; every permutation in weather patterns — warm or cold — is said to be a consequence of that warming or proof of it.

No theory ever benefited by the application of data, Amy. Data kills theories. A theory has no better time than when it's lying there naked, pure, unsullied by facts. Let's just keep it that way for a while." "So you don't really have a theory?" "Clueless." "You lying bag of fish heads." "I can fire you, you know. Even if Clay was the one that hired you, I'm not totally superfluous to this operation yet. I'm kind of in charge. I can fire you. Then how will you live?" "I'm not getting paid." "See, right there. Perfectly good concept ruined by the application of fact.

When we blew the first atomic bomb at White Sands near the end of the war, nobody knew what was going to happen. There was a theory that the chain reaction would continue forever. And we would have created a little tiny sun out there in the desert that would burn until the end of the universe. It wasn't a widely held theory but it was a theory that nobody had a way of disproving. There were people who thought it wouldn't go off at all, that it would simply sit out there and melt and produce a great big dirty cloud of radioactivity. Nobody knew.

There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable.There is another theory which states that this has already happened.

We have never observed infinity in nature. Whenever you have infinities in a theory, that's where the theory fails as a description of nature. And if space was born in the Big Bang, yet is infinite now, we are forced to believe that it's instantaneously, infinitely big. It seems absurd.

The obvious thing is I would love to fight Conor McGregor. We've got some history there, and he won, and people saying he didn't knock me out because of an injury he had. I was injured in the fight, too, so let's test that theory. I want to test that theory.

A justice is not like a law professor, who might say, 'This is my theory... and this is what I'm going to be faithful to and consistent with,' and in twenty years will look back and say, 'I had a consistent theory of the First Amendment as applied to a particular area.'

Hygiene is the corruption of medicine by morality. It is impossible to find a hygienist who does not debase his theory of the healthful with a theory of the virtuous. ... The aim of medicine is surely not to make men virtuous; it is to safeguard them from the consequences of their vices.

Unless a thing can be defined by measurement, it has no place in a theory. And since an accurate value of the momentum of a localized particle cannot be defined by measurement it therefore has no place in the theory.

In general, inquiry ceases when we adopt a theory. After that, we overlook whatever makes against it, and see and think, and talk and write, only in its favor. Indeed, when we have a snug, comfortable theory, to which we are much attached, they appear to us as a very mean set of facts that will not square with it.

There are some modern practitioners, who declaim against medical theory in general, not considering that to think is to theorize; and that no one can direct a method of cure to a person labouring under disease, without thinking, that is, without theorizing; and happy therefore is the patient, whose physician possesses the best theory.

Detectives are only human; we're not Gods that know everything. When detectives tell their theory, in reality, most are rather anxious. Thinking that there's always possibility that they could have missed something, somewhere... But in return, the excitement you experience when your theory's smack bang correct is twice as great!

There was a time, before I was in graduate school, when political philosophy pretty much ceased to exist. The positivists thought there were only two things you could do: conceptual analysis or empirical investigation. Any kind of political theory or even ethical theory was nonsense.

Evolutionary game theory was originally developed as an alternative to the hypothesis of group selection; now it is clear that game theory models postulate group selection, even if they do not use the g-word.

I picked economics at the end of my undergraduate time because it seemed to be a really nice combination of theory, including mathematical theory on one hand, and things that are quite practical that you can touch and see and feel. So I picked it, and I consciously thought of it as an experiment to see if I liked it. And it worked.

I don't believe anything till I have seen the proof. For anything without proof, I think we should believe the theory that gives us peace. It doesn't matter whether the theory is true or not.

The fundamental religious objection to the theory of evolution is not scientific but moral. [Fundamentalists believe that] evolutionary theory must be opposed because it leads to rampant immorality, on both the personal and political scales. The basic cause of this immorality is atheism.

Thought and theory must precede all salutary action; yet action is nobler in itself than either thought or theory.

Astrologers were greatly impressed, and misled, by what they believed to be confirming evidence-so much so that they were quite unimpressed by any unfavorable evidence. Moreover, by making their interpretations and prophecies sufficiently vague they were able to explain away anything that might have been a refutation of the theory had the theory and the prophecies been more precise. In order to escape falsification they destroyed the testability of their theory. It is a typical soothsayer's trick to predict things so vaguely that the predictions can hardly fail: that they become irrefutable.

In fact it is remarkable that this theory has had progressively greater influence on the spirit of researchers, following a series of discoveries in different scholarly disciplines. The convergence in the results of these independent studies—which was neither planned nor sought—constitutes in itself a significant argument in favor of the theory.

The theory of evolution by natural selection is an ecological theory-founded on ecological observation by perhaps the greatest of all ecologists. It has been adopted by and brought up by the science of genetics, and ecologists, being modest people, are apt to forget their distinguished parenthood.

To be sure, Darwin's theory of evolution is imperfect. However, the fact that a scientific theory cannot yet render an explanation on every point should not be used as a pretext to thrust an untestable alternative hypothesis grounded in religion into the science classroom or to misrepresent well-established scientific propositions.

At a purely formal level, one could call probability theory the study of measure spaces with total measure one, but that would be like calling number theory the study of strings of digits which terminate.

It is certainly not the least charm of a theory that it is refutable; it is precisely thereby that it attracts the more subtle minds. It seems that the hundred-times-refuted theory of the "free will" owes its persistence to this charm alone; some one is always appearing who feels himself strong enough to refute it.

People are always asking for the latest developments in the unification of this theory with that theory, and they don't give us a chance to tell them anything about what we know pretty well. They always want to know the things we don't know.

Theory and fact are equally strong and utterly interdependent; one has no meaning without the other. We need theory to organize and interpret facts, even to know what we can or might observe. And we need facts to validate theories and give them substance.

I have this theory that I hold on to, the theory that everything great in art and in life in general is jazz. It's just like all these things that just kind of seem to fall into place. You know, like mistakes that somehow turn into something beautiful.

I have a name for people who went to the extreme efficient market theory-which is "bonkers". It was an intellectually consistent theory that enabled them to do pretty mathematics. So I understand its seductiveness to people with large mathematical gifts. It just had a difficulty in that the fundamental assumption did not tie properly to reality.

When the theory of evolution destroyed the picture of God as the supreme Creator, confidence in God as the all-powerful Father of man fell with it, although many were able to combine a belief in God with the acceptance of the Darwinian theory.

I make a distinction between theory and methodology, the latter being the practical deployment of a premise. Theory on the contrary may well be applied, hence becomes methodology without a hitch, but isn't necessarily practical at all.

It is wiser, I believe, to arrive at theory by way of evidence rather than the other way around.... It is more rewarding, in any case, to assemble the facts first and, in the process of arranging them in narrative form, to discover a theory or a historical generalization emerging of its own accord.

There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened.

No one must think that Newton’s great creation can be overthrown in any real sense by this [Theory of Relativity] or by any other theory. His clear and wide ideas will for ever retain their significance as the foundation on which our modern conceptions of physics have been built.