“It's packed in there already and we're fifteen minutes early. My theory, proven once again," Kristen said, climbing the stairs."What theory would that be?""Everyone adores a tragedy.”

“It is a scientifically proven fact that all scientifically proven facts have originated from original and thereby unproven theories.”

“If my theory of relativity is proven successful, Germany will claim me as a German and France will declare me a citizen of the world. Should my theory prove untrue, France will say that I am a German, and Germany will declare that I am a Jew.”

“It proved once again the theory that no security system is a match for a stupid employee.”

“Everyone has a theory of human nature. Everyone has to anticipate the behavior of others, and that means we all need theories about what makes people tick.”

“Somewhere out there is a theory that would explain my empirical observations, and this theory has yet to be discovered. Mathematics thrives on such mysteries.”