Related:

• Incest: The theory of relativity...
• Theory of relativity: If you go back far enough, we're all related.
• Marge: I really think this is a bad idea. Homer: Marge, I agree with you -- in theory.
  In theory, communism works. In theory....
• Think harder.
• The further away from home you are the harder your pecker gets.
• 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....
• An old Jewish man reads about Einstein's theory of relativity in the newspaper and asks his scientist grandson to explain it to him.
  "Well, zayda, it's sort of like this. Einstein says that if you're having your teeth drilled without Novocain, a minute seems like an hour....