Sheldon: As I was saying, you and Leonard had a disappointing sexual encounter. Earlier this evening, Leonard characterized it as just fine. So what you're seeing here is a continuation of the mocking that followed.
Penny: Okay. Yeah, well, I'm just gonna go eat my dinner elsewhere. Maybe an airplane headed for a mountainside.

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

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?

Howard: I'm not signing a prenup.
Penny: All right, Howard Wolowitz, listen up! You sign anything she puts in front of you, because you are the luckiest man alive. If you let her go, there is no way you can find anyone else. Speaking on behalf of all women, it is not going to happen, we had a meeting.

Raj: I don't like bugs, okay. They freak me out.
Sheldon: Interesting. You're afraid of insects and women. Ladybugs must render you catatonic.

Sheldon: I am not crazy, my mother had me tested.

Raj: Ooo, big talk from a man who was once treed by a chicken.