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

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

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

There is real confusion about what it means to be right and wrong - the difference between what spiritual beliefs are and what science is.

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

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.

Sometimes models are surprisingly smart.