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.

The God Particle: If the Universe Is the Answer, What Is the Question? (ed. Houghton Mifflin Harcourt, 2006) - ISBN: 9780547524627