Howard: Oh, my God. An Alf doll. When I was 11 my mother got me one to help me sleep after my dad left. I used to pretend that my dad had moved to the planet Melmac, and Alf was going to bring him back to me. But he never did. Where's my daddy, puppet? Where is he?

Howard: You know, I'm really glad you decided to learn Mandarin.
Sheldon: Why?
Howard: Once you're fluent, you'll have a billion more people to annoy instead of me.

Bernadette: Maybe we should get one of those machines to help her up the stairs.
Howard: You mean a forklift?

Sheldon: Sheldon Cooper does not cry.
Howard: That's true, you'd rust.

Sheldon: One ring to rule them all.
Rajesh: One ring to find them.
Wolowitz: One ring to bring them all.
Leonard: And in the darkness bind them.
Rajesh: Holy crap are we nerdy!

Sheldon: So, just to clarify, when you say three, do we stand up or do we pee?

Leonard: What was that?
Penny: Sheldon tried to steal the ring so I punched him.
Leonard: That's my girl!