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

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.

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.

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.

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.

We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good.

God has many names, though He is only one Being.

I'm going to be kind, because then it all just kind of spreads, and the world is a little nicer out there.

Learning is a process not an event.

If ignorance and passion are the foes of popular morality, it must be confessed that moral indifference is the malady of the cultivated classes.

When I am willing, all sound is available to me.

There are obviously two educations. One should teach us how to make a living and the other how to live.

The lessons this life has planted in my heart pertain more to caring than crops, more to Golden Rule than gold, more to the proper choice than to the popular choice.

True self is the part of us that does not change when circumstances do.

In some ways, it's easier to settle for someone else's version of success than to risk falling short at one's own.