Agricultural practice served Darwin as the material basis for the elaboration of his theory of Evolution, which explained the natural causation of the adaptation we see in the structure of the organic world. That was a great advance in the knowledge of living nature.

The most important single thing about string theory is that it's a highly mathematical theory, and the mathematics holds together in a very tight and consistent way. It contains in its basic structure both quantum mechanics and the theory of gravity. That's big news.

We've become used to processing images that are part of the non-linear narrative theory. I think there's a thinner line between fantasy and normality. People spend much more time in their own heads now. There's so much to conform to, so many influences coming at you.

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.

Britain is still seen as a beacon for decency, for democracy, for vigorous judges upholding the rule of law and, dare I say it, a free press. I respect the press in theory, but when you see some of the things it writes about you, it's not exactly a happy relationship.

I don't think there's anything inherently wrong with a bank being big. In fact, there are some good arguments about universality of geography that in theory, if you have all your eggs in one little community, and some big employer goes out, that could be your downfall.

In the early days of the video game business, everybody played. The question is, what happened? My theory - and I think it's pretty well borne out - is that in the '80s, games got gory, and that lost the women. And then they got complex, and that lost the casual gamer.

In the first quarter of the nineteenth century the experimental proof for the interdependence of the composition and properties of chemical compounds resulted in the theory that they are mutually related, so that like composition governs like properties, and conversely.

The Independent or Congregational theory includes two principles; first, that the governing and executive power in the Church is in the brotherhood; and secondly, that the Church organization is complete in each worshipping assembly, which is independent of every other.

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.'

The 1970s was the decade of developments in the new area of information economics. Search theory, which emphasized the need to gather information, was joined by models that featured asymmetric information, the case in which information differed across individual agents.

I look at scripts, and sometimes I apply theory to them. For 'Antiviral,' for example, I was reading Laura Mulvey's 'Visual Pleasure and Narrative Cinema,' and it was all about the psychological process by which we fetishize the female image. It's all about scopophilia.

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.

It is probably safe to say that all the changes of factual knowledge which have led to the relativity theory, resulting in a very great theoretical development, are completely trivial from any point of view except their relevance to the structure of a theoretical system.

If diffraction or interference phenomena were to be sought it was therefore necessary, in accordance with the basic principles of wave theory, to select for the test arrangement far smaller decisive dimensions than those employed in corresponding tests with visible light.

In the 19th century, smallpox was widely considered a disease of filth, which meant that it was largely understood to be a disease of the poor. According to filth theory, any number of contagious diseases were caused by bad air that had been made foul by excrement or rot.

When the basic status of a theory is clear, and all that needs to be cleared are details, you can collaborate. But if the main structure of a hypothesis isn't established, and you want to change the paradigm - like it was the case in the 1960s - it's better to work alone.

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.

Struggling to end the war and to eliminate slavery once and for all by way of the 13th Amendment, with the amendment's prospective passage undermining the effort to make peace with the Confederacy and vice versa, Lincoln embodied the Great Man theory that leftists disdain.

I don't know if I'm embarrassed because I think it's a funny show, but I could imagine there being a snootiness about it, but I do find 'The Big Bang Theory' very funny. I think that's a good show. I think it's fun, I like the actors; I think they're all doing a great job.

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.

Very much, string theory is simply a work in progress. What we are inching toward every day are predictions that within the realm of current technology we hope to test. It's not like we're working on a theory that is permanently beyond experiment. That would be philosophy.

Early economic theory was rooted in the Italian, French, and Spanish traditions, which were subjectivist oriented. Then it shifted onto the terrible path by Smith and Ricardo and the British classical tradition, which is 'objectivist' - values are in inherent in production.

By having simplified what is known, physicists have been led into realms which as yet are anything but simple. That at some time, they, too, will appear as simple consequences of a theory of which no one has yet dreamed is not a statement of fact.It is a statement of faith.

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.

My work was fairly theoretical. It was in recursive function theory. And in particular, hierarchies of functions in terms of computational complexity. I got involved in real computers and programming mainly by being - well, I was interested even as I came to graduate school.

Technically you need the extra dimensions. At first people didn't like them too much, but they've got a big benefit, which is that the ability of string theory to describe all the elementary particles and their forces along with gravity depends on using the extra dimensions.

I'm from the Midwest, and I loved my family. I had a very good time as a child, but I was also - I have a theory about Jews growing up in the Midwest, that there is an ultimately sort of wonderful avoidance of a lot of things, and a great acceptance of whatever is happening.

The birth of science as we know it arguably began with Isaac Newton's formulation of the laws of gravitation and motion. It is no exaggeration to say that physics was reborn in the early 20th-century with the twin revolutions of quantum mechanics and the theory of relativity.

People have made a living deconstructing Lennon and The Beatles songs because of their compositional sophistication. But what's so exciting about John is that he never had any of that training on musical theory; something just spoke to him, and he just knew what sounded right.

I was so surprised because I'm not too sure whether I could win a Nobel Prize, you know, because basically, physics, it means that usually people was awarded for the invention of the basic theory. But in my case, not a basic theory, in my case just making the device, you know.

At MIT, I had the good fortune for seven years to teach network theory, which is basic to many disciplines, to one-third of the undergraduate student body. It was an experiment to see how high we could bring their level of understanding, and it exceeded all of my expectations.

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.

My theory in the '90s was that I didn't want to take a Jane Austen book I loved and reduce it to a 90-minute movie. The Emma Thompson-Ang Lee 'Sense and Sensibility' was beautiful, but other ones, I didn't think justice was being done. It's not a slam dunk to adapt these books.

Here's what I think, though this theory is hardly unique to me: Kids aren't picky because they really care about particular foods; they're picky because it offers one of the few opportunities in their heavily guided and chaperoned lives to express opinions and exercise control.

Most mental health professionals, including clinicians and researchers, endorse the deficit theory. They're convinced that we wage war simply because we don't know how to make love. We desperately want loving, satisfying relationships but lack the skills we need to develop them.

In my travels, I also noticed that kids in Thailand like spicy food, and kids in India love curry. I'm hoping to introduce my son, Hudson, to lots of veggies and spices when he's young. I say that before he's started on solid foods, so it could be easier in theory than practice!

In 2002, a Scottish journalist, during a dinner meant to be private, absolutely wanted me to react to Stephen Hawking's comments. I said one shouldn't pay too much attention to what Hawking was saying because he was a celebrity but not a specialist of elementary particle theory.

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.

There is an important idea in psychology: The 'just world theory,' which says that it is very important for us to convince ourselves that the world is just and things happen for a reason. That there is some elemental fairness in everything, which creates the illusion of justice.

I learned to play by ear before I learned music theory. For me, that makes sense. After all, children learn to speak before they read and write. The more you understand of music - how harmony and time signatures work, and what chords and inversions are - the more you'll enjoy it.

The world runs on individuals pursuing their self interests. The great achievements of civilization have not come from government bureaus. Einstein didn't construct his theory under order from a, from a bureaucrat. Henry Ford didn't revolutionize the automobile industry that way.

The funny thing is, I sometimes get the impression that some people outside of the field think that there's some element of security that we have in working on a theory that hasn't made any predictions that can be proven false. In a sense, we're working on something unfalsifiable.

One lesson I learned from 'The Monstrumologist' was never to get too attached to your own characters. That's harder in practice than in theory. At the end of the third book - which coincided with the end of my contract - I was an emotional wreck. I mourned Will Henry and Warthrop.

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.

We need a theory that goes before the Big Bang, and that's String Theory. String Theory says that perhaps two universes collided to create our universe, or maybe our universe is butted from another universe leaving an umbilical cord. Well, that umbilical cord is called a wormhole.

The idea of stopping is not unmeaningful to me. I think there might be a time when, in theory at least, you'd say, 'Well I've mostly done what I want to do.' But how could you ever prevent a few years down the line some germ of an idea getting at you and you've got to do it again?

Deep down, I'm a small-town girl who has it drilled in her DNA to grow up, marry, have kids, settle down. Maybe I will knock the same theory in my kids' heads, too. I'm also liberal, a political enthusiast, a bookworm, and the least bit ambitious to pull off a soap drama queen act.

There is a new venue for theory, necessarily impure, where it emerges in and as the very event of cultural translation. This is not the displacement of theory by historicism, nor a simple historicization of theory that exposes the contingent limits of its more generalizable claims.

The most extremist power any political leader can assert is the power to target his own citizens for execution without any charges or due process, far from any battlefield. The Obama administration has not only asserted exactly that power in theory, but has exercised it in practice.

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