Cutting Quote by James Jeans

As you know, a theory in physics is not useful unless it is able to predict underlined effects which we would otherwise expect.

— Richard P. Feynman

The importance of group theory was emphasized very recently when some physicists using group theory predicted the existence of a particle that had never…

— Irving Adler

Quantum physics is no longer an abstract theory for specialists. We must now absolutely include it in our education and also in our culture.

— Claude Cohen-Tannoudji

“All of our ideas in physics require a certain amount of common sense in their application; they are not purely mathematical or abstract ideas.”

— Richard Feynman

There is no place in this new kind of physics both for the field and matter, for the field is the only reality.

— Albert Einstein

At present, when the prevailing forms of society have become hindrances to the free expression of human powers, it is precisely the abstract branches…

— Max Horkheimer

It would be better for the true physics if there were no mathematicians on earth.

— Daniel Bernoulli

Mathematical physics is in the first place physics and it could not exist without experimental investigations.

— Anonymous

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

— David Antin

If a problem is clearly stated, it has no further interest to the physicist.

— Anonymous

Most people don't have time to master the very mathematical details of theoretical physics.

— Stephen Hawking

...The entire preoccupation of the physicist is with things that contain within themselves a principle of movement and rest.

— Aristotle