Archer Quote by Georg Cantor

You can never tell what will happen to a theory before you can get around to using it.

— Josephine Lawrence

Whenever a theory appears to you as the only possible one, take this as a sign that you have neither understood the theory nor…

— Karl Popper

Creating a new theory is not like destroying an old barn and erecting a skyscraper in its place. It is rather like climbing a…

— Albert Einstein

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

— David Antin

Theory is good; but it doesn't prevent things from existing.

— Jean-Martin Charcot

I don't believe that the ultimate theory will come by steady work along existing lines. We need something new. We can't predict what that…

— Stephen Hawking

Theory is needed to tell you where to look.

— Marcus du Sautoy

There never comes a point where a theory can be said to be true. The most that one can claim for any theory is…

— A.J. Ayer

Theory is knowledge that doesn't work. Practice is when everything works and you don't know why.

— Hermann Hesse

“Any theory that makes progress is bound to be initially counterintuitive.”

— Daniel C. Dennett

“That' the thing about theories. You can theorize all you want, but at the end of the day when you theories become reality, when…

— Jane Green

Everybody has a theory.

— Daniel Handler