I did not set out to explain the extinction of the dinosaurs. I'm a particle physicist, and I was actually thinking about dark matter along with some collaborators.

Creativity is essential to particle physics, cosmology, and to mathematics, and to other fields of science, just as it is to its more widely acknowledged beneficiaries - the arts and humanities.

It's hubris to think that the way we see things is everything there is.

Basically, I wasn't properly socialized, so it made sense to do physics.

When it comes to the world around us, is there any choice but to explore?

One of the nice things about math and science is it’s obvious, you get the answer or you don’t get the answer.

Speculation and the exploration of ideas beyond what we know with certainty are what lead to progress.

Sometimes models are surprisingly smart.

Travel at faster than the speed of light certainly can have dramatic implications that are difficult to understand, such as time travel.

Science is a combination of theory and experiment and the two together are how you make progress.

All the normal matter in the Milky Way disc is denser than the dark matter that surrounds it.

For no one, in our long decline, So dusty, spiteful and divided, Had quite such pleasant friends as mine, Or loved them half as much as I did.

memory is a shallow grave

Love warms the heart.

If we can by any method establish a relation of mutual trust between the laborer and the employer, we shall lay the foundation stone of a structure that will endure for all time.

I consider myself to be an inverse paranoid. I always operate as if everything is part of a universal plot to enhance my well-being.

No relief was forthcoming from my then-Catholic faith, which said the practice of homosexuality was a 'mortal sin' subject to damnation.

We have an epidemic of sexual predators following our children, whether it be on the computers, whether it be in our public parks, whether it be in the workplace, or even our schools.

It is always easy to question the judgement of others in matters of which we may be imperfectly informed.

There is no reason whatsoever to think that Buddhism can compete successfully with the relentless evangelizing of Christianity and Islam. Nor should it try to.

Don't worry about the war. It's all over but the shooting.