Asks Quote by Henri Poincare

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

No particular theory may ever be regarded as absolutely certain.... No scientific theory is sacrosanct...

— Karl Popper

I'm not sure what theory is, unless it's the pursuit of fundamental questions.

— David Antin

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

“[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

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

— Jerry A. Coyne

A theory is only as good as its assumptions. If the premises are false, the theory has no real scientific value. The only scientific…

— Maurice Allais

A theory accepted by 99 percent of scientists may be wrong.

— Tom Bethell

The important question is whether [a theory] is true, not whether envisioning an alternative is too intellectually painful to bear.

— J. D. Trout

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…

— Christopher Hampton

A good scientific theory is one which is falsifiable, which has not been falsified.

— Richard Dawkins

Any theory is better than no theory.

— Fuller Albright