"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."
"The only thing that interferes with my learning is my education."
"A bartender is just a pharmacist with a limited inventory."
"If the facts don't fit the theory, change the facts."
"Do not worry about your difficulties in Mathematics. I can assure you mine are still greater."
"There is no vaccine against stupidity."
"Time flies when you are having fun."
"In theory, theory and practice are the same. In practice, they are not."
