Amy: Are you really gonna plan a wedding in three months?
Raj: Yeah, well, her family's doing most of the work. They're amazing. We talk all the time.
Sheldon: Why?
Raj: Because we're about to get married and they're gonna be my family.
Sheldon: Amy and I are married, and I never talk to her family.
Penny: Really? My parents love Leonard.
Leonard: Yeah. And my mom loves Penny, which is weird, because I never knew she could love.

Leonard: What would you be if you were attached to another object by an inclined plane, wrapped helically around an axis?
Sheldon: Screwed?
Leonard: There you go.

Sheldon: This song is never going to stop. Have you ever dealt with something so relentlessly irritating?
Leonard: That's a trick question, right?

Leonard: Penny, as a scientist, my job is to figure out why things happen. But I don't think I'll ever understand how someone like me could get to be with someone like you. You know maybe I don't need to understand it, I just need to be grateful. I love you, Penny.

Sheldon: So the doctor prescribed Nizoral and it blocked enzyme action, and the fungus cleared right up.
Mrs. Fowler: That's a very disturbing picture.
Sheldon: Yes, well, they say a picture's worth a thousand words, but I say nothing beats a picture and a thousand words.
Mrs. Fowler: Still, you might want to take it off Facebook.
Sheldon: Oh, no. It's in my nature to share.

Mrs. Fowler: I don't know about you, but I don't really like magic.
Sheldon: You just keep getting better and better.

Howard: Hey, have you checked the dates on these? They're all expired.
Stuart: You buy candy in a comic book store, you get what you get.