Related:

• An erection is like the Theory of Relativity - the more you think about it, the harder it gets.
• Theory of relativity: If you go back far enough, we're all related.
• If my theory of relativity is proven successful, Germany will claim me as a German and France will declare that I am a citizen of the world.
  -- Einstei...
• Only ten people in the world now understand the theory of relativity.
  Each of my 33 friends thinks they are among that ten. -- Albert Einstein (1879-1955)...
• Put your hand on a hot stove for a minute, and it seems like an hour.
  Sit with a pretty girl for an hour, and it seems like a minute....
• Incest, n.: Sibling revelry.
• Incest - a game for the entire family!
• Incest: Keep it in the family.