Physics has entered a remarkable era. Ideas that were once the realm of science fiction are now entering our theoretical — and maybe even experimental — grasp. Brand-new theoretical discoveries about extra dimensions have irreversibly changed how particle physicists, astrophysicists, and cosmologists now think about the world. The sheer number and pace of discoveries tells us that we've most likely only scratched the surface of the wondrous possibilities that lie in store. Ideas have taken on a life of their own.

Our hypotheses are initially rooted in theoretical consistency and elegance, but...ultimatel y it is experiment not rigid belief that determines what is correct.

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

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

I considered going into business or becoming a lawyer - not for the money, but for the thrill of problem-solving.

Probably if you look like Tyra Banks, it probably is hard, even if you are really smart, for people to take - it surprises some.

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