Problem Quote by Karl Popper

I would construct and work along various lines until I found them untenable. When one theory was discarded, I developed another at once. I…

— Thomas A. Edison

Never abandon a theory that explains something until you have a theory that explains more.

— John McCarthy

To understand theory is not enough. Much practice is necessary...

— Kimon Nicolaides

The current situation with regard to theory is odd and maybe defined by a paradox.

— Simon Critchley

Action will remove the doubt that theory cannot solve

— Pehyl Hsieh

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

— Josephine Lawrence

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

— David Antin

I never read theory. I think that was to my benefit.

— Nan Goldin

“You can't learn what you're unable to understand but a theory is infeasible until you won't need it.”

— Robin Sacredfire

Action will remove the doubts that theory cannot solve.

— Tehyi Hsieh

“You can't learn what you can't understand but any theory is infeasible until you don't need it.”

— Robin Sacredfire

Any theory is better than no theory.

— Fuller Albright