Difficulty Quote by Pieter Zeeman

It may happen that small differences in the initial conditions produce very great ones in the final phenomena. A small error in the former…

— Henri Poincare

It may happen that small differences in the initial conditions produce very great ones in the final phenomena.

— Henri Poincare

Everything must be taken into account. If the fact will not fit the theory---let the theory go.

— Agatha Christie

It reveals to me the causes of many natural phenomena that are entirely incomprehensible in the light of the generally accepted hypotheses. To refute…

— Galileo Galilei

Theory said one thing and the experiment said something different, so that was the stimulus that started me going, that there was something there…

— Freeman Dyson

It is curious how often erroneous theories have had a beneficial effect for particular branches of science.

— Ernst Mayr

The atomic hypothesis which had worked so splendidly in Physics breaks down in Psychics.

— John Maynard Keynes

It must be conceded that a theory has an important advantage if its basic concepts and fundamental hypotheses are 'close to experience,' and greater…

— Albert Einstein

Earlier in this century, the Heisenberg Principle established that the very act of observing a natural phenomenon can change what is being observed. Although…

— Al Gore

Physics has a history of synthesizing many phenomena into a few theories.

— Richard P. Feynman

On the theoretical side, I was concerned with stochastic resonance.

— Richard Ernst

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