Top 454 Theory Quotes

There is a theory in showbiz circles that mentally you remain the same age as when you first tasted fame, and I think there is a grain of truth in this.
Bob Mortimer
A potentially useful property of forecasts based on cointegration is that when extended some way ahead, the forecasts of the two series will form a constant ratio, as is expected by some asymptotic economic theory.
Clive Granger
You can convince yourself of just about anything when you want to believe a conspiracy theory.
Brian Stelter
Einstein explained his theory to me every day, and on my arrival I was fully convinced that he understood it.
Chaim Weizmann
See my father knew a lot about music, he played the piano and he would do theory and stuff like that, but I didn’t learn anything from him, but I played that for him and he liked it a lot.
John Fahey
What the string theorists do is arguably physics. It deals with the physical world. They’re attempting to make a consistent theory that explains the interactions we see among particles and gravity as well. That’s certainly physics, but it’s a kind of physics that is not yet testable.
Sheldon Lee Glashow
America traditionally represents the greatest possibility of someone’s going from nothing to something. Why? In theory, if not practice, the government stays out of the way and lets individuals take risks and reap rewards or accept the consequences of failure. We call this capitalism – or, at least, we used to.
Larry Elder
Experience without theory is blind, but theory without experience is mere intellectual play.
Immanuel Kant
The one thing I do have is good ears. I don’t mean perfect pitch, but ears for picking things up. I developed my ear through piano theory, but I never had a guitar lesson in my life, except from Eric Clapton off of records.
Eddie Van Halen
One of the strangest features of string theory is that it requires more than the three spatial dimensions that we see directly in the world around us. That sounds like science fiction, but it is an indisputable outcome of the mathematics of string theory.
Brian Greene
My theory of hitting was just to watch the ball as it came in and hit it.
Tommy Lasorda
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
Science is organized common sense where many a beautiful theory was killed by an ugly fact.
Thomas Huxley
I used to have a theory actually that, if you’ve had a good childhood, a good marriage and a little bit of money in the bank, you’re going to make a lousy comedian.
David Steinberg
There is a sort of theory that you should adapt bad books because they always make more successful films.
Christopher Hampton
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 was that what I had to do was make a study of human behavior.
A. E. van Vogt
I believe without exception that theory follows practice. Whenever there is a conflict between theory and practice, theory is wrong. As far as I’m concerned, we make theories for what people have done.
David Baker
Whenever you have dynamic interactions between 300 million people and the American economy acting in really complex ways, that introduces a degree of almost chaos theory to the system, in a literal sense.
Nate Silver
I never had the time or luxury to think about inventing my own colour theory. When colour came, I was interested in expressing things that happened around me in time.
Rene Burri
Evolution is a bankrupt speculative philosophy, not a scientific fact. Only a spiritually bankrupt society could ever believe it. Only atheists could accept this Satanic theory.
Jimmy Swaggart
When I arrived at Harvard, I wanted to design a course in political theory that would have interested me, back when I was started out, in a way that the standard things didn’t.
Michael Sandel
Success is not a matter of mastering subtle, sophisticated theory but rather of embracing common sense with uncommon levels of discipline and persistence.
Patrick Lencioni
By nature, I keep moving, man. My theory is, be the shark. You’ve just got to keep moving. You can’t stop.
Brad Pitt
Einstein’s gravitational theory, which is said to be the greatest single achievement of theoretical physics, resulted in beautiful relations connecting gravitational phenomena with the geometry of space; this was an exciting idea.
Richard P. Feynman
Every string theory that’s been written down says the speed of light is universal. But other ideas about quantum gravity predict the speed of light has actually increased.
Lee Smolin
Each child is biologically required to have a mother. Fatherhood is a well-regarded theory, but motherhood is a fact.
P. J. O’Rourke
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.
Trofim Lysenko
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.
John Eldredge
It is on the acceptance or rejection of the theory of the Unity of all in Nature, in its ultimate Essence, that mainly rests the belief or unbelief in the existence around us of other conscious beings besides the Spirits of the Dead.
Helena Blavatsky
The Galapagos Islands are probably the most famous wild

The Galapagos Islands are probably the most famous wildlife-watching destination in the world. And no wonder – it’s almost impossible to exaggerate the sheer spectacle of the place that provided inspiration for Charles Darwin’s ground-breaking theory of natural selection.
Mark Carwardine
There’s a thing called the ‘One Drop’ theory in African-American culture, which is if you have one drop of black blood in you, you’re black.
Keegan-Michael Key
It is disturbing to discover in oneself these curious revelations of the validity of the Darwinian theory. If it is true that we have sprung from the ape, there are occasions when my own spring appears not to have been very far.
Cornelia Otis Skinner
First of all, the Big Bang wasn’t very big. Second of all, there was no bang. Third, Big Bang Theory doesn’t tell you what banged, when it banged, how it banged. It just said it did bang. So the Big Bang theory in some sense is a total misnomer.
Michio Kaku
We’re going to need a definitive quantum theory of gravity, which is part of a grand unified theory – it’s the main missing piece.
Kip Thorne
I think I’ve always had a certain amount of skepticism of this whole ‘shut up and smile’ theory. I haven’t ever swallowed that pill so easily, although I tried.
Amber Heard
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
You can’t imagine how much detail we know about brains. There were 28,000 people who went to the neuroscience conference this year, and every one of them is doing research in brains. A lot of data. But there’s no theory. There’s a little, wimpy box on top there.
Jeff Hawkins
Indeed, the history of 20th century physics was in large measure about how to avoid the infinities that crop up in particle theory and cosmology. The idea of point particles is convenient but leads to profound, puzzling troubles.
Gregory Benford
It’s my theory that one of the big reasons clinics have shut down – and will continue to shut down – is that former abortion workers have spoken out about their experiences in public and worked to testify against their former employers.
Abby Johnson
I’ve always been interested in the idea of space exploration. When I was younger it was just a dream, but the theory of rockets being able to travel through space was very much alive. I found it very exciting.
Gerry Anderson
I don’t think about a theory of everything when I do my research. And even if we knew the ultimate underlying theory, how are you going to explain the fact that we’re sitting here? Solving string theory won’t tell us how humanity was born.
Lisa Randall
The idea that human beings have changed and are changing the basic climate system of the Earth through their industrial activities and burning of fossil fuels – the essence of the Greens’ theory of global warming – has about as much basis in science as Marxism and Freudianism.
Paul Johnson
Of course, there is no reconciliation between the theory of evolution by natural selection and the traditional religious view of the origin of the human mind.
E. O. Wilson
Notwithstanding these major arguments the wave theory initially did not meet with complete acceptance.
Max von Laue
I would say in one sentence my goal is to at least be part of the journey to find the unified theory that Einstein himself was really the first to look for. He didn’t find it, but we think we’re hot on the trail.
Brian Greene
The major novelty of my theory was its claim that the most rapid evolutionary change does not occur in widespread, populous species, as claimed by Most geneticists, but in small founder populations.
Ernst Mayr
There are two books that I often travel with; one is ‘The Theory on Moral Sentiments’ by Adam Smith. The other is ‘The Meditations.’ It’s not that I agree with either views expressed in the books, but I believe ideas and thoughts of older generations can offer food for thought for the current generation.
Wen Jiabao
Entropy theory, on the other hand, is not concerned with the probability of succession in a series of items but with the overall distribution of kinds of items in a given arrangement.
Rudolf Arnheim
I read a lot of literary theory when I was in graduate school, especially about novels, and the best book I ever read about endings was Peter Brooks’ ‘Reading for the Plot. ‘
Lev Grossman
A script is like a theory of a movie.
John C. Reilly