Big Bang Theory Quote
Penny: (Sheldon doesn't have a driving license) Why didn't you just get a license at sixteen, like everybody else?
Sheldon: I was otherwise engaged.
Penny: Doing what?
Sheldon: Examining perturbative amplitudes in n=4 supersymmetric theories, leading to a reexamination of the ultraviolet properties of multi-loop n=8 supergravity, using modern twistor theory.
Penny: Well, how about when you were seventeen?
Quote from S02E05 - The Euclid Alternative