Penny: Wait. What's wrong with geology?
Sheldon: Let me put this in a way you'll understand, Penny. You remember how you explained to me that the Kardashians aren't real celebrities? Well, geology is the Kardashians of science.

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The Big Bang Theory Season 7 Episode 20 Quotes

Sheldon: Am I wasting my life on a theory that can never be proven?
Howard: Maybe. But how great is Game of Thrones?

Raj: I know. Being an astrophysicist right now is like being a rock star.
Howard: Only without the sex.
Raj: Yeah, literally, none of it.