theory quotes

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What are theory quotes?

Accurate and famous quotes by David Hilbert, Niels Bohr, Richard Powers, Karl Popper, Morris Kline, Roger Penrose, George Boole, Brian Greene, that are about theory. You can read the best of all time and enjoy Top 10 lists. These sayings are handy to improve yourself and your knowledge.

What are the best theory images quotes?

Here is selection of the finest quotes embed as messages on beautiful images. Beautiful theory affirmations to read, bookmark and share with your friends and family.


  1. Picture quote by Ralph Waldo Emerson about action

    An ounce of action is worth a ton of theory. ⏤ Ralph Waldo Emerson


  2. Picture quote by Steven Pinker about religion

    The theory that religion is a force for peace, does not fits the facts of it's history. ⏤ Steven Pinker


  3. Picture quote by Robert A. Heinlein about possibilities

    Everything is theoretically impossible, until it is done. ⏤ Robert A. Heinlein


Top 10 quotes about theory

  1. Top 10 quotes
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What are the best theory quotations?

Below you can read the best quotes about theory of all times. Some of the top sayings from famous people here to read and remember. Access the best theory quotations. Top theory sayings on images and beautiful affirmations. Enjoy and bookmark favorite ones.


Scientific theory is a contrived foothold in the chaos of living phenomena.

Wilhelm Reich

Your theory is crazy, but it's not crazy enough to be true.

Niels Bohr

I have a theory and I really believe it. I think your worst weakness can become your greatest single strength.

Barbara Corcoran

He who loves practice without theory is like the sailor who boards ship without a rudder and compass and never knows where he may cast.

Leonardo da Vinci

In theory there is no difference between theory and practice. In practice there is.

Yogi Berra

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

H. L. Mencken

You know, I'm not big on conspiracy theory. It does really kind of get my blood going when I find out there really are conspiracies that actually happened.

James Van Der Beek

The theory of Communism may be summed up in one sentence: Abolish all private property.

Karl Marx

I have a tendency to often share the point of view of the conspiracy theory.

Marion Cotillard

In theory, I'd like to work in a group. But the group I'd like to work in, all the musicians in them are long since dead.

Robert Wyatt

The theory of evolution by cumulative natural selection is the only theory we know of that is in principle capable of explaining the existence of organized complexity.

Richard Dawkins

Nevertheless, the realization that breaking a pencil point would have far less disastrous consequences played little or no role, I believe, in this decision to explore theory!

Rudolph A. Marcus

Essential to the theory of evolution is the premise that everything has come into being by itself.

Walter Lang

Freud was a hero. He descended to the Underworld and met there stark terrors. He carried with him his theory as a Medusa's head which turned these terrors to stone.

R. D. Laing

The Freudian theory is one of the most important foundation stones for an edifice to be built by future generations, the dwelling of a freer and wiser humanity.

Thomas Mann

I've got a theory that if you give 100% all of the time, somehow things will work out in the end.

Larry Bird

Although I know a lot of the previous shuttle flights, in theory, had their tasks laid out; but there were still some changes that came along for them.

Linda M. Godwin

My theory on housework is, if the item doesn't multiply, smell, catch on fire or block the refrigerator door, let it be. No one cares. Why should you?

Erma Bombeck

When a torrent sweeps a man against a boulder, you must expect him to scream, and you need not be surprised if the scream is sometimes a theory.

Robert Louis Stevenson

A theory has only the alternative of being right or wrong. A model has a third possibility: it may be right, but irrelevant.

Manfred Eigen

To hate is to study, to study is to understand, to understand is to appreciate, to appreciate is to love. So maybe I'll end up loving your theory.

John Archibald Wheeler

Experience without theory is blind, but theory without experience is mere intellectual play.

Immanuel Kant

My theory has always been, that if we are to dream, the flatteries of hope are as cheap, and pleasanter, than the gloom of despair.

Thomas Jefferson

All theory, dear friend, is gray, but the golden tree of life springs ever green.

Johann Wolfgang von Goethe

I have just got a new theory of eternity.

Albert Einstein

Einstein explained his theory to me every day, and on my arrival I was fully convinced that he understood it.

Chaim Weizmann

What has any poet to trust more than the feel of the thing? Theory concerns him only until he picks up his pen, and it begins to concern him again as soon as he lays it down.

John Ciardi

My theory is that if you look confident you can pull off anything - even if you have no clue what you're doing.

Jessica Alba

My theory of evolution is that Darwin was adopted.

Steven Wright

As for everything else, so for a mathematical theory: beauty can be perceived but not explained.

Arthur Cayley

I have never believed in the Wizard of Oz theory of consulting, that I am all-knowing and all-seeing, and that everyone around me is kind of a backbencher.

David Axelrod

Every theory of love, from Plato down, teaches that each individual loves in the other sex what he lacks in himself.

G. Stanley Hall

I wanted a theory that would allow one to live outside the office with the same philosophy one uses inside it.

Kenneth L. Pike

Today's practicality is often no more than the accepted form of yesterday's theory.

Kenneth L. Pike

Many, many, many small moves of many kinds can bring a way to manage change. The theory can come later.

Flora Lewis

By means of microscopic observation and astronomical projection the lotus flower can become the foundation for an entire theory of the universe and an agent whereby we may perceive Truth.

Yukio Mishima

They who have reasoned ignorantly, or who have aimed at effecting their personal ends by flattering the popular feeling, have boldly affirmed that 'one man is as good as another;' a maxim that is true in neither nature, revealed morals, nor political theory.

James F. Cooper

In theory it may seem all right to some, but when it comes to being made the instrument of the Lord's vengeance, I myself don't like it.

Robert Gould Shaw

It is also a good rule not to put overmuch confidence in the observational results that are put forward until they are confirmed by theory.

Arthur Eddington

Some people wish above all to conform to the rules, I wish only to render what I can hear. There is no theory. You have only to listen. Pleasure is the law.

Claude Debussy

Men who hold a theory of the Church which excludes from communion those whom they admit to have the Spirit of Christ simply proclaim that their theory is in flat contradiction to the spiritual fact.

Roland Allen

Statistics: the mathematical theory of ignorance.

Morris Kline

There is a gulf between the high value Americans put on life in theory and its cheapness in practice.

Elizabeth Joan Smith

The oldest theory of contract is I think negative.

Frederick Pollock

Well, gauge theory is very fundamental to our understanding of physical forces these days. But they are also dependent on a mathematical idea, which has been around for longer than gauge theory has.

Roger Penrose

Technique! The very word is like a shriek of outraged Art. It is the idiot name given to effort by those who are too weak, too weary, or too dull to play the game. The mighty have no theory of technique.

Leonard Bacon

I am not the kind of girl who can trust a theory based on one person.

Brigitte Boisselier

I am relying on the theory that playing golf is just like riding a bike and that I haven't forgotten how.

Jennifer Wyatt

According to the now almost universally accepted theory, all the races of mankind had a common origin.

Ellsworth Huntington

Being exposed to theory, stimulated by a basic love of concepts and mathematics, was a marvelous experience.

Rudolph A. Marcus

A professor must have a theory as a dog must have fleas.

H. L. Mencken

My favorite laser disk ever was the laser disk for The Graduate, which had a commentary track that wasn't even the filmmakers, it was a professor, some film criticism guy who just happen to be this amazing commentator who went off into the whole theory of comedy.

Jay Roach

The theory of cultural bias... is the idea that a culture is based on a particular form of organization. It can't be transplanted except to another variant of that organization.

Mary Douglas

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.

Nicolaus Copernicus

The whole action of the laws tended to increase the number of consumers of food and to diminish the number of producers, was due the invention of the Malthusian theory of population.

Henry Charles Carey

Radical constructivism, thus, is radical because it breaks with convention and develops a theory of knowledge in which knowledge does not reflect an 'objective' ontological reality.

Paul Watzlawick

Your candor is worth everything to your cause. It is refreshing to find a person with a new theory who frankly confesses that he finds difficulties, insurmountable, at least for the present.

Asa Gray

I hesitate to predict whether this theory is true. But if the general opinion of Mankind is optimistic then we're in for a period of extreme popularity for science fiction.

David Eddings

Given the devaluation of literature and of the study of foreign languages per se in the United States, as well as the preponderance of theory over text in graduate literature studies, creative writing programs keep literature courses populated.

Marilyn Hacker

Sense data are much more controversial than qualia, because they are associated with a controversial theory of perception - that one perceives the world by perceiving one's sense-data, or something like that.

David Chalmers

I'm a games and theory kind of guy. I love puzzles, so it was fun dissecting Shakespeare's prose.

Neil Patrick Harris

On the spiritual theory, man consists essentially of a spiritual nature or mind intimately associated with a spiritual body or soul, both of which are developed in and by means of a material organism.

Alfred Russel Wallace

In the book, I make the point that here we have string theory and here we have twistor theory and we don't know if either one of them is the right approach to nature.

Roger Penrose

The basic theory in twistor theory is not to add extra dimensions.

Roger Penrose

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.

Friedrich Nietzsche

As you say, the way string theory requires all these extra dimensions and this comes from certain consistency requirements about how string should behave and so on.

Roger Penrose

We completely reject the theory of evolution.

John Ambrose Fleming

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.

Douglas Adams

My present work concerns the problems connected with the theory of elementary particles, the theory of gravitation and cosmology and I shall be glad if I can manage to make some contribution to these important branches of science.

Andrei Sakharov

The theory of evolution is totally inadequate to explain the origin and manifestation of the inorganic world.

John Ambrose Fleming

Beautiful Evidence is about the theory and practice of analytical design.

Edward Tufte

In the absence of evidence, superstition. It's a Middle Ages thing. That's my theory anyway.

Tucker Carlson

I think academics are infuriating. For every expert on Shakespeare there is another one to cancel his theory out. It drives you up the wall. I think the greatest form of finding out the truth is through fantasy.

Joseph Fiennes

The greatest mathematicians, as Archimedes, Newton, and Gauss, always united theory and applications in equal measure.

Felix Klein

Normal science does not aim at novelties of fact or theory and, when successful, finds none.

Thomas Kuhn

He had a theory, Walt did, that the religious life, and all the agony that goes with it, is just something God sics on people who have the gall to accuse Him of having created an ugly world.

J. D. Salinger

There's a statistical theory that if you gave a million monkeys typewriters and set them to work, they'd eventually come up with the complete works of Shakespeare. Thanks to the Internet, we now know this isn't true.

Ian Hart

A lot of times when I sit down with the other comics and try to talk theory, they say I'm being too serious.

Joel Hodgson

They didn't accept me theory - not a theory, but just a thought I had about this character. I noticed that this man only exists when the boy comes into the grocery.

Omar Sharif

Every theory presented as a scientific concept is just that; it's a theory that tries to explain more about the world than previous theories have done. It is open to being challenged and to being proven incorrect.

Marvin Harris

You don't attack the grunts of Vietnam; you blame the theory behind the war. Nobody who fought in that war was at fault. It was the war itself that was at fault. It's the same thing with psychotherapy.

James Hillman

Psychotherapy theory turns it all on you: you are the one who is wrong. If a kid is having trouble or is discouraged, the problem is not just inside the kid; it's also in the system, the society.

James Hillman

There are a lot of people out there who are just waiting that we fail. They brought up the theory that we're one-hit wonders and they want us to fall flat on our noses, just to prove them right.

Mark McGrath

At the present day the crude theory of the sexual impulse held on one side, and the ignorant rejection of theory altogether on the other side, are beginning to be seen as both alike unjustified.

Havelock Ellis

Men act like brutes in so far as the sequences of their perceptions arise through the principle of memory only, like those empirical physicians who have mere practice without theory.

Gottfried Leibniz

You know, some of the good part of blog theory was that blogs would be like diaries that the world could read. They would be spontaneous, whatever pops into your mind, as a diary would be.

Gregg Easterbrook

Whichever theory we adopt to give a rational explanation of human existence, that theory must take into account and explain the mental nature we see at work in all modern communities.

Arthur Keith

The three parts of the theory are analytical ability, the ability to analyze things to judge, to criticize. Creative, the ability to create, to invent and discover and practical, the ability to apply and use what you know.

Robert Sternberg

The fact - not theory - that evolution has occurred and the Darwinian theory as to how it occurred have become so confused in popular opinion that the distinction must be stressed.

George G. Simpson

Architecture doesn't come from theory. You don't think your way through a building.

Arthur Erickson

I know that a good many champions have entertained the thought that the more they discourage youngsters, the longer they would reign. However, this theory never impressed me, and I always made it a point to give youths the benefit of my experience in bicycle racing.

Major Taylor

I have a theory because I was being beaten up a lot by people outside of school, it was almost like if I could make myself sick enough they'd take sympathy on me.

Daniel Johns

My theory is, if you can do comedy and you can be in a scene with someone like Brad Garrett and hold your own, you've really got a future in this business.

Faith Ford

I chose to deal with the science of cryptography. Cryptography began in mathematics. Codes were developed, even from Caesar's time, based on number theory and mathematical principles. I decided to use those principles and designed a work that is encoded.

James Sanborn

Mr. DeMille's theory of sexual difference was that marriage is an artificial state for women. The want to be taken, ruled, raped. That was his theory.

Hedy Lamarr

The scientists often have more unfettered imaginations than current philosophers do. Relativity theory came as a complete surprise to philosophers, and so did quantum mechanics, and so did other things.

Robert Nozick

Postman is a media analyst and his theory is that television doesn't influence our culture, but that it is our culture and the presidency and anything that relies on television.

Val Kilmer

From this bestial view that the human mind consists of only sense certainty, pleasure and pain, Locke developed an equally bestial theory of the nation. Man originally existed in a State of Nature of complete liberty.

Robert Trout

Philosophy is not a theory but an activity.

Ludwig Wittgenstein

Most of the stuff I learned to play, I learned in high school. I had a band in high school, a jazz-fusion thing, and I was the keyboard player. I was interested in how the instruments worked and the theory behind playing with them.

Brian McKnight

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