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

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

Sometimes models are surprisingly smart.

Although I was first drawn to math and science by the certainty they promised, today I find the unanswered questions and the unexpected connections at least as attractive.

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

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.

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