Those who do not stop asking silly questions become scientists.

Theorists write all the popular books on science: Heinz Pagels, Frank Wilczek, Stephen Hawking, Richard Feynman, et al. And why not? They have all that spare time.

During an intense period of lab work, the outside world vanishes and the obsession is total. Sleep is when you can curl up on the accelerator floor for an hour.

We hope to explain the entire universe in a single, simple formula that you can wear on your T-shirt.

Physics isn't a religion. If it were, we'd have a much easier time raising money.

Neutrinos ... win the minimalist contest: zero charge, zero radius, and very possibly zero mass.

A theoretical physicist can spend his entire lifetime missing the intellectual challenge of experimental work, experiencing none of the thrills and dangers - the overhead crane with its ten-ton load, the flashing skull and crossbones and danger, radioactivity signs. A theorist's only real hazard is stabbing himself with a pencil while attacking a bug that crawls out of his calculations.