Beats Quote by George Stigler

The overwhelming majority of theories are rejected because they contain bad explanations, not because they fail experimental tests.

— David Deutsch

If you can't think of an observation that could disprove a theory, that theory simply isn't scientific.

— Jerry A. Coyne

We have reached a situation where a theory has been accepted as fact by some, and possible contrary evidence is shunted aside. [This is]…

— Robert Shapiro

Theories are not so much wrong as incomplete

— Isaac Asimov

A theory is scientific only if it can be disproved. But the moment you try to cover absolutely everything the chances are that you…

— Hermann Bondi

The common idea that scientists reject a theory as soon as it leads to a contradiction is just not so. When they get something…

— Vannevar Bush

A theory should not attempt to explain all the facts, because some of the facts are wrong

— Francis Crick

“[Modern scientific] theories can necessarily never be more than hypothetical, since their starting-point is wholly empirical, for facts in themselves are always susceptible of…

— René Guénon

Even facts become fictions without adequate ways of seeing "the facts". We do not need theories so much as the experience that is the…

— Anonymous

How empty is theory in the presence of fact!

— Mark Twain

The truth of a theory can never be proven, for one never knows if future experience will contradict its conclusions.

— Albert Einstein

Too many theorists have a tendency to ignore facts that contradict their convictions.

— Maurice Allais