Quotes on Theory

Years should not be devoted to the acquisition of dead languages or to the study of history which, for the most part, is a detailed account of things that never occurred. It is useless to fill the individual with dates of great battles, with the births and deaths of kings. They should be taught the philosophy of history, the growth of nations, of philosophies, theories, and, above all, of the sciences.

Unless we understand what it is that leads to economic and financial instability, we cannot prescribe -- make policy -- to modify or eliminate it. Identifying a phenomenon is not enough; we need a theory that makes instability a normal result in our economy and gives us handles to control it.

I can easily conceive, most Holy Father, that as soon as some people learn that in this book which I have written concerning the revolutions of the heavenly bodies, I ascribe certain motions to the Earth, they will cry out at once that I and my theory should be rejected.

If we ever do find a complete theory of the universe, it would be a great triumph of human reason but it wouldn't leave much for us to do. We need an intellectual challenge.

All our science is just a cookery book, with an orthodox theory of cooking that nobody's allowed to question, and a list of recipes that mustn't be added to except by special permission from the head cook.

There was an idea in the air, becoming clearer and stronger, an idea not just in the theories of Karl Marx but in the dreams of writers and artists through the ages: that people might cooperatively use the treasures of the earth to make life better for everyone, not just a few.

Morality is the theory that every human act must be either right or wrong, and that 99 % of them are wrong.

Democracy is the theory that the common people know what they want, and deserve to get it good and hard.

Evolution is just a theory? Well, so is gravity and I don't see you jumping out of buildings.

Discussion and argument are essential parts of science; the greatest talent is the ability to strip a theory until the simple basic idea emerges with clarity.

I sometimes ask myself how it came about that I was the one to develop the theory of relativity. The reason, I think, is that a normal adult never stops to think about problems of space and time. These are things which he has thought about as a child. Bu t my intellectual development was retarded,as a result of which I began to wonder about space and time only when I had already grown up.

The economists will have to revise their theories of value.

The belief that politics can be scientific must inevitably produce tyrannies. Politics cannot be a science, because in politics theory and practice cannot be separated, and the sciences depend upon their separation. Empirical politics must be kept in bounds by democratic institutions, which leave it up to the subjects of the experiment to say whether it shall be tried, and to stop it if they dislike it, because, in politics, there is a distinction, unknown to science, between Truth and Justice.

To me it seems not unreasonable to find a re-enforcement of optimism, a renewal of courage and hope, in the modern theory that man has mounted to what he is from the lowest step of potentiality, through toilsome grades of ever-expanding existence, even thought it have been by a spiral stairway, mainly dark or dusty, with loop-holes at long intervals only, and these granting but a narrow and one-sided view.

Almost all systems of economic thought are premised on the idea of continued economic growth, which would be fine and dandy if we lived on an infinite planet, but there's this small, niggling, inconvenient fact that the planet is, in fact, finite, and that, unlike economic theory, it is governed by physical and biological reality

[T]he Constitution ought to be the standard of construction for the laws, and that wherever there is an evident opposition, the laws ought to give place to the Constitution. But this doctrine is not deducible from any circumstance peculiar to the plan of convention, but from the general theory of a limited Constitution.

We are too solicitous for government intervention, on the theory, first, that the people themselves are helpless, and second, that the Government has superior capacity for action. Often times both of these conclusions are wrong.

Christianity is not a theory or speculation, but a life; not a philosophy of life, but a life and a living process.

Some people continue to defend trickle-down theories which assume that economic growth, encouraged by a free market, will inevitably succeed in bringing about greater justice and inclusiveness in the world. This opinion, which has never been confirmed by the facts, expresses a crude and naive trust in the goodness of those wielding economic power and in the sacralized workings of the prevailing economic system.

I cannot think of permanent enmity between man and man, and believing as I do in the theory of reincarnation, I live in the hope that if not in this birth, in some other birth I shall be able to hug all of humanity in friendly embrace.

The overwhelming number of teachers ...are unable to name or describe a theory of learning that underlies what they do.