Big Bang Theory Quote
Penny: Look, can we just please forget about all this extra stuff, and can you just tell me what Leonard does?
Sheldon: All right. Leonard is attempting to learn why sub-atomic particles move the way they do.
Penny: Really? That's it? Well, that doesn't sound so complicated.
Sheldon: It's not. That's why Leonard does it.
Quote from S03E10 - The Gorilla Experiment