Penny: This is really sad, and in a different way than it was twenty minutes ago.

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

Raj: [to Amy] If you were having Sheldon's baby, would you really want him in the room?
Penny: Yeah, if he's in the room when they're making the baby, I'll give you $10.

Penny: I mean, who even reads Scientific American?
Leonard: It's kind of a big deal.
Penny: If it's such a big deal, how come the biggest celebrity they could get for the cover is a molecule?

James Earl Jones: Let me guess. You like Star Wars.
*Sheldon nods*
James Earl Jones: You know I've been in other movies.
*Sheldon nods*
James Earl Jones: But you don't care about those, do you?
*Sheldon shakes his head*
*James Earl Jones signals for Sheldon to come closer*
James Earl Jones: I have one thing to say to people like you. I like Star Wars too! Care to join me?

Bernadette: Well, while they're acting like teenagers we could do something grown up.
Amy: Ooh, you mean like a museum?
Penny: Yes, like a museum but anything else!

Amy: Why can't they do something sensible like Sheldon, and start their own comic book convention? Also, who wants to throw me out that window?