Top 454 Theory Quotes

Europe is so well gardened that it resembles a work of art, a scientific theory, a neat metaphysical system. Man has re-created Europe in his own image.
Aldous Huxley
Probability is expectation founded upon partial knowledge. A perfect acquaintance with all the circumstances affecting the occurrence of an event would change expectation into certainty, and leave nether room nor demand for a theory of probabilities.
George Boole
I met my wife when we were both 19 or 20, at a music school where she was taking voice and piano lessons and I was doing classes in music theory and composition.
Rohinton Mistry
I have a theory that there’s almost this primal viewpoint on women in the business, that once you’re beyond childbearing age, you are perceived as nonthreatening, nonsexual, noncastable. Sure, I already knew it before I got into it. I just didn’t know I’d end up making my living from low-budget, independent films.
Marcia Gay Harden
As an undergraduate at UBC in Canada, I fell in love with economic theory. It was the right choice for me.
Robert Mundell
The absurd consequences of neglecting structure but using the concept of order just the same are evident if one examines the present terminology of information theory.
Rudolf Arnheim
I’m not the religious-conspiracy-theorist go-to guy, particularly. But I think it’s really kind of silly to try to equate birds falling out of the sky with some kind of an end-times theory.
Kirk Cameron
The final outcome cannot be known, either to the originator of a new theory, or to his colleagues and critics, who are bent on falsifying it. Thus, the scientific innovator may feel all the more lonely and uncertain.
Peter D. Mitchell
According to the now almost universally accepted theory, all the races of mankind had a common origin.
Ellsworth Huntington
In theory, people would pick progression every time over being idle. But if you look at us as a culture, as a people, you would say that if you get up at five o’clock in the morning, eat your breakfast, go to work, make money, pay your bills, you’re progressing, when you’re still doing what’s comfortable.
Q-Tip
Studying music in a conservatory would be stifling for

Studying music in a conservatory would be stifling for me, although I respect people who can do it. And by no means am I an expert at notating music or music theory – that’s not really my world.
Beck
I have a theory that the truth is never told during the nine-to-five hours.
Hunter S. Thompson
I wouldn’t have thought that a wrong theory should lead us to understand better the ordinary quantum field theories or to have new insights about the quantum states of black holes.
Edward Witten
The greatest mathematicians, as Archimedes, Newton, and Gauss, always united theory and applications in equal measure.
Felix Klein
According to ‘M’ theory, ours is not the only universe. Instead, ‘M’ theory predicts that a great many universes were created out of nothing.
Stephen Hawking
In order to displace a prevailing theory or paradigm in science, it is not enough to merely point out what it cannot explain; you have to offer a new theory that explains more data, and do so in a testable way.
Michael Shermer
As a conservative, I maintain a healthy skepticism of the theory of man-made global warming. I also believe that more people enjoying the fruits of modernity and economic development is a good thing – as long as those people arrived legally and obey the law.
Gary Bauer
Ego, id, and superego are terms familiar to all, but for many years, Freud’s psychoanalytic theory has thrived in English departments around the country as a tool for interpreting literary texts but has rarely, if ever, been discussed in science departments.
Siri Hustvedt
One of the most interesting things about the cognitive theory is the idea that anger and interpersonal conflict ultimately result from a mental con. In other words, you’re telling yourself things that aren’t entirely true when you’re fighting with someone.
David D. Burns
The market always, in theory at least, looks ahead. And it’s always trying to take in every bit of information that it can as quickly as it can. You don’t really care so much if the company made a dollar last year; you want to know what it’s going to make this year.
Alex Berenson
I don’t believe in the no-carb diet… I have a theory. I think if you give up carbs, you get cranky. You must include them in your daily diet.
Karisma Kapoor
I had faith in the concept and the theory that all Americans are endowed with the right to a fair trial and I would be fairly judged and fairly tried.
Wesley Snipes
Of course the lower classes have always felt downtrodden and aspired to a better life. But there is this theory that people respond to a class structure in England – there was a time when people knew who they were and knew whom they served and as long as management wasn’t abusive, it was a good life for people.
Damian Lewis
I have emphasized experiments more than theory. Of course, we need some theory when thinking of soft matter.
Pierre-Gilles de Gennes
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
Your theory is crazy, but it’s not crazy enough to be true.
Niels Bohr
I studied physics at university, and I’m still a sucker for an experiment or scientific theory.
Ben Miller
If we do discover a complete theory, it should be in time understandable in broad principle by everyone. Then we shall all, philosophers, scientists, and just ordinary people be able to take part in the discussion of why we and the universe exist.
Stephen Hawking
Scientific theory is a contrived foothold in the chaos of living phenomena.
Wilhelm Reich
The crisis triggered a fertile period of scientific ferment and revolution in economic theory.
James Tobin
You know very well that unless you’re a scientist, it’s much more important for a theory to be shapely, than for it to be true.
Christopher Hampton
The first issue to be settled is whether socialism has a right to exist Are its allegations concerning the present system true? Is industry proceeding on a principle of fraud? I wish to test the power of recent economic theory to give an exact answer to this question.
John Bates Clark
No theory is good unless it permits, not rest, but the greatest work. No theory is good except on condition that one use it to go on beyond.
Andre Gide
Science is to find something unknown, while invention is to make something new out of the known theory.
Ivar Giaever
Extreme heroism springs from something that no scientific theory can fully explain; it’s an illogical impulse that flies in the face of biology, psychology, actuarial statistics, and basic common sense.
Christopher McDougall
The theory of evolution is totally inadequate to explain the origin and manifestation of the inorganic world.
John Ambrose Fleming
Charles Darwin got his theory, his notion of natural selection, evolution, and so did its independent discoverer, Alfred Wallace, from reading Malthus.
Paul Samuelson
There is no single theory that is used in economics that considers the finite nature of resources. It’s shocking.
Jeremy Grantham
Today’s practicality is often no more than the accepted form of yesterday’s theory.
Kenneth L. Pike
I went to Vassar College for undergraduate and studied literature and queer theory, and all of the above. And then I took a Fulbright scholarship in Russia.
Sasha Velour
It’s just a theory really, but I have always thought that your physical surroundings can shape your voice and personality.
K. D. Lang
America's popular heroes have seldom been its great thi

America’s popular heroes have seldom been its great thinkers, and even less its scientists. The success of TV’s ‘Big Bang Theory,’ which seems to give the lie to this claim, is more the exception that proves the rule.
Seth Shostak
When I was in high school, I was really into string theory and superstring theory and read ‘Scientific American.’ It’s fascinating.
Sam Trammell
I have a theory that the best ads come from personal experience. Some of the good ones I have done have really come out of the real experience of my life, and somehow this has come over as true and valid and persuasive.
David Ogilvy
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
Critical race theory is racist. It does nothing to bring us together.
Marjorie Taylor Greene
I take the view that we all have permission to be a little baffled by quantum information science and algorithmic information theory.
James Gleick
This is a great country, but fortunately for you, it is not perfect. There is much to be done to bring about complete equality. Remove hunger. Bring reality closer to theory and democratic principles.
Thurgood Marshall
I’m very strongly in favor of the auteur theory.
George Hickenlooper
As Development Secretary, I have seen in the developing world that climate change there is not a theory, is not a future threat: it is a contemporary crisis.
Douglas Alexander
I’ve got this theory that human beings are innately religious; we have a belief system. It doesn’t have to be a theist form, necessarily. But we need a belief system, some framework on which to hang our behavior.
Tana French
I have a theory that self-made, first-generation actresses don’t feel entitled to success.
Natasha Lyonne
There’s something about ‘Strictly Come Dancing.’ Everywhere I go, people wish me good luck; cabbies toot their horns. It’s lovely. I have a theory: in straitened times, there’s nothing like a bit of unapologetic escapism.
Cherie Lunghi
You buy any book on color theory today, and it’s just complete poppycock. Everybody comes out of school painting pink, purple and green. The whole damn cartoon industry has pink purple and green on their mind.
John Kricfalusi
Global warming, like Marxism, is a political theory of actions, demanding compliance with its rules.
Paul Johnson
Although we have, in theory, abolished human slavery, recognized women’s rights, and stopped child labor, we continue to enslave other species who, if we simply pay attention, show quite clearly that they experience parental love, pain, and the desire for freedom, just as we do.
Ingrid Newkirk