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

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

Vietnam was a lie but at least there was a political agenda. It was the domino theory. Iraq is about nothing but George Bush's ego laced with imperialist ambitions. And it was helped by your government.
Donald Sutherland

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

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

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

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

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

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

But we did conclude that Ray had actually killed Dr. King pursuant to his theory that he was going to be able to get hold of that money. He had learned of this offer through his ties in the Missouri State Penitentiary.
Louis Stokes

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

Meanwhile, the originator of a theory may have a very lonely time, especially if his colleagues find his views of nature unfamiliar, and difficult to appreciate.
Peter D. Mitchell

In a certain sense, aspects of my solo playing were developed in order to test the theory about how long particular elements could be, as parts of so-called free improvisations.
Evan Parker

The theory has to be interpreted that extra dimensions beyond the ordinary four dimensions the three spatial dimensions plus time are sufficiently small that they haven't been observed yet.
Edward Witten

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

I have a theory about that, if you have to say something, if you have encourage for one second a prospective acting student - he should not go in to acting.
Dabney Coleman

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

On the other hand, we don't understand the theory too completely, and because of this fuzziness of spacetime, the very concept of spacetime and spacetime dimensions isn't precisely defined.
Edward Witten

I thought it must be pure science fiction. But when I checked it out I found a lot of magazine articles that actually supported the theory behind the book which was incredible. That's when I decided to acquire the rights of the book and everything went from there.
Roland Emmerich

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