I'm not creating the universe. I'm creating a model of the universe, which may or may not be true.

Experiment is the only means of knowledge at our disposal. Everything else is poetry, imagination.

The assumption of an absolute determinism is the essential foundation of every scientific enquiry.

To become a theoretical physicist ... you need to have a passionate love affair with the universe.

Growing new organs of the body as they wear out, extending the human lifespan? What's not to like?

Time travel and teleportation will have to wait. It may take centuries to master these technology.

To a physicist life looks nothing short of a miracle. It's just amazing what living things can do.

The primary role of professional societies is the lobbying of the government for special advantage

Some are very hostile if mistakes are pointed out. I'm not. If I make a mistake, I make a mistake.

Disorder increases with time because we measure time in the direction in which disorder increases.

Sometimes I wonder if I'm as famous for my wheelchair and disabilities as I am for my discoveries.

You must be ready to give up even the most attractive ideas when experiment shows them to be wrong.

My friends are all geeks. And many of them are scientists who love playing outside as much as I do.

In Italy there's perhaps a little less space than in Spain, but there's certainly as much sunshine.

If the facts are contrary to any predictions, then the hypothesis is wrong no matter how appealing.

Unfortunately the global warming hysteria, as I see it, is driven by politics more than by science.

As finite creatures who think and feel, we can create islands of meaning in the sea of information.

The number of neurons in the brain is very much larger than the number of components in a computer.

When there were financial difficulties they still managed to provide us with music and art lessons.

You can be only a modest distance away from the gravity brane, and gravity will be incredibly weak.

We need to make a world in which fewer children are born, and in which we take better care of them.

I am frequently astonished that it so often results in correct predictions of experimental results.

Victory usually goes to those green enough to underestimate the monumental hurdles they are facing.

There is a certain sense in which I would say the universe has a purpose. It's not there by chance.

If you don't invest in basic research at some stage you start losing the basis of applied research.

The excitement of learning separates youth from old age. As long as you're learning you're not old.

I don't want to write an autobiography because I would become public property with no privacy left.

We each exist for but a short time, and in that time explore but a small part of the whole universe

It is said that there's no such thing as a free lunch. But the universe is the ultimate free lunch.

No matter what else happens, this is the century in which we must learn to live without fossil fuel.

I think that intellectuals who end up in hell will have to read page proofs and check indexes there.

No scientific subject has ever aroused quite the same mixture of hopes and fears [as atomic energy].

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge.

If a man never contradicts himself, the reason must be that he virtually never says anything at all.

The sensation of colour cannot be accounted for by the physicist's objective picture of light-waves.

It is nice to know that the computer understands the problem. But I would like to understand it too.

Oh, scientific mind. You get all your data from us, the senses, but without us you would be nothing.

The laws of nature are constructed in such a way as to make the universe as interesting as possible.

If I were again beginning my studies, I would follow the advice of Plato and start with mathematics.

[Science is] a great game. It is inspiring and refreshing. The playing field is the universe itself.

Scientists under all forms of government must be able to participate fully in international efforts.

Whatever the evolutionary basis of religion, the xenophobia it now generates is clearly maladaptive.

The more thoroughly I conduct scientific research, the more I believe that science excludes atheism.

Reality has always proved to be much more sophisticated and subtle than any preconceived philosophy.

I have nothing against investment banking, but it's like massaging money rather than creating money.

Restrictions on mobility will be removed as cars become driverless. We'll be chauffeured, basically.

We are driven by the usual insatiable curiosity of the scientist, and our work is a delightful game.

Things that seem incredibly different can really be manifestations of the same underlying phenomena.

Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on.

People who wish to analyze nature without using mathematics must settle for a reduced understanding.

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