Those who do not stop asking silly questions become scientists.

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.

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

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.

Most of the problems in life are because:We misunderstand people's intentions, We don't listen and jump to conclusions, Then we are too proud to apologise and too stubborn to forgive.

When you're truly awesome, you know that it's actually a burden and wish day after day to be relieved of such a curse. Think of about 95% of the superheroes.

You got to be willing to walk in a storm. That's what I tell people all the time.

I'm focused on doing what makes me happiest and on how I can make real improvements and contributions to my immediate niche, i.e. my family, friends, and local community.

Tell no man anything, for no man listens Yet hold thy lips ready to speak.

If you play a Nickleback song backwards you'll hear messages from the devil. Even worse, if you play it forwards you'll hear Nickleback.

You listen to the intelligence community, they say, listen, maybe it's ISIS today, it's somebody else tomorrow. We'll deal with the caliphate, but it's going to take years to be able to handle this.

We cannot succeed when half of us are held back. We call upon our sisters around the world to be brave, to embrace the strength within themselves and realize their full potential.

The way to reason with a predator is to make it aware that it can live in a cage, or it can die, but it can no longer prey upon us.

If it excites you, if it makes you feel good, it's God speaking to you.