Raj: Thanks again for letting me crash girls' night.
Penny: Are you kidding? You brought fancy wine and made fondue. I've slept with guys for less.
It's a joke. Based on real events.

Penny: At one point, they had me figure out how to get a banana out of a puzzle box.
Leonard: Wait, Sheldon gave me a banana in a box. He was testing me, too.
Penny: Unbelievable.
Leonard: And how could a chimp even solve that? That was impossible.
Penny: Really? You couldn't get it out?

Leonard: If I take it off, Sheldon wins.
Penny: Sweetie, every night you don't kill him in his sleep, he wins.

Sheldon: Woman, you are playing with forces beyond your ken.
Penny: Yeah, well your Ken can kiss my Barbie.

Bernadette: We can't all be Cinderella.
Amy: Then how do we decide?
Bernadette: Well, it's simple. This was my idea. I'm driving. I'm Cinderella. You bitches got a problem with that, we could stop the car right now.

Sheldon: (Typing into a search engine) How do I get 12-year-old schoolgirls excited?
Howard and Leonard: No!

Bernadette: Every one of you has the capacity to be anything you want to be.
Penny: Unless you want to be Cinderella.
Bernadette: Come at me. See what happens!