I sometimes think about the tower at Pisa as the first particle accelerator, a (nearly) vertical linear accelerator that Galileo used in his studies.

Theorists write all the popular books on science: Heinz Pagels, Frank Wilczek, Stephen Hawking, Richard Feynman, et al. And why not? They have all that spare time.

Physics isn't a religion. If it were, we'd have a much easier time raising money.

The physicists defer only to mathematicians, and the mathematicians defer only to God.

Those who do not stop asking silly questions become scientists.

We hope to explain the entire universe in a single, simple formula that you can wear on your T-shirt.

Science should have no less lofty a goal. My ambition is to live to see all of physics reduced to a formula so elegant and simple that it will fit easily on the front of a T-shirt.

My children have often asked me why I never received a Nobel Prize. I used to tell them it was because the Nobel committee couldn’t make up its mind which of my projects to recognize.

I'm so old I can remember when the Dead Sea was only sick.

One of the major ingredients for professional success in science is luck. Without this, forget it.

Neutrinos ... win the minimalist contest: zero charge, zero radius, and very possibly zero mass.

Failure is usually boring. It is the credible but unrealized threat of failure that is interesting.

To be a success, follow your love but not the process.

Learn, learn and relearn: become a great scholar.

There is no such thing as a failed test. You will learn every time you challenge yourself.

I just have so much fun playing bad girl roles. Getting to say things that in life you would never ordinarily say, there's something really liberating about that. It's fun.

Sober up, and you see and hear everything you'd been able to avoid hearing before.

Begin at once to live, and count each day as a separate life.

I just respected comedians whether they were or they weren't, from, you know, new or old.

I'm reliable sources, I'll tell ya anything you want me to know.