Physics without mathematics is meaningless..

String theory is 21 st century physics that fell accidentally into the 20th century..

If it squirms, it's biology; if it stinks, it's chemistry; if it doesn't work, it's physics; and if you can't understand it, it's mathematics..

Physics can be difficult sometimes. And by sometimes, I mean always. And by Physics, I mean everything..

Laws of physics laws of love of time and space and the (in)between place (in)between you and me and where we are lost and looking looking and lost.

I got into physics through pop science and quantum science and ended up being such a quantum groupie..

To talk intelligibly about modern physics, we have to admit the possibility of uncaused events..

Since Einstein developed his theory of relativity, and Rutherford and Bohr revolutionised physics, our picture of the world has radically changed..

One of the most beautiful papers in physics that I know of is yours in the American Journal of Physics..

A book on the new physics, if not purely descriptive of experimental work, must essentially be mathematical..

I was going to engineering school but fell in love with physics..

Mathematics should be mixed not only with physics but with ethics..

I was always very strong in math, physics and calculus..

You watch an old 'Jeopardy!' and the categories alone are very plain. 'Poetry,' or 'Movies,' or 'Physics.' If you watch it now, though, there'll be a….

There is no authority who decides what is a good idea..

Physics is the most fundamental, and least significant, of the sciences..

If all of mathematics disappeared, physics would be set back by exactly one week..

We can deduce, often, from one part of physics like the law of gravitation, a principle which turns out to be much more valid than the derivation..

It's because somebody knows something about it that we can't talk about physics. It's the things that nobody knows anything about we can discuss..

It really is the most poetic thing I know about physics: you are all stardust..

The one thing we can't really train for is weightlessness, real weightlessness. It's a ton of fun. It's pure Newtonian physics. You push in one direc….