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

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.

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

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

When I was in school I liked math because all the problems had answers. Everything else seemed very subjective.

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

There are many aspects of time we just do not understand. That’s the thing about writing a popular book: You realize the things you understand because for those you can give a really simple explanation. But some things about time I just don’t know how to give simple explanations for, even though I can tell you mathematically what’s going on.