The big bang theory

Geologen Bert (Brian Posehn) har frågat Sheldon (Jim Parsons) om de ska jobba på ett projekt tillsammans, men Sheldon tvekar eftersom han anser att geologi inte är en riktig vetenskap. Han tycker dock det verkar kul, så han tvekar ännu mer. Han finner en utväg i att prata med Penny om situationen han hamnat i (Kaley Cuoco):

Sheldon: "I'm working with Bert, but I don't want anyone to find out."
Penny: "Well, you just told me, so, strong start."
Sheldon: "Penny, this is serious. My reputation is on the line. What are people gonna think when they see us collaborating?"
Penny: "I don't know. Poor Bert?"
Sheldon: "I am a respected theoretical physicist. I aspire to win a Nobel Prize someday. But no one is gonna take me seriously if they find out I've been dabbling in geology."
Penny: "Well, why not? They're both sciences. And I know, because they're classes my high school counselor said weren't for me."
Sheldon: "They're very different. Physics answers the question, What is the nature of the universe? And geology answers the question, What'd ljust trip over?"