Leonard: My mother believes that if you're not prepared mentally, it can delay your body from going into labor.
Bernadette: So what are you trying to say? It's my fault?
Leonard: (sighs) Raj is crazy. Your ankles aren't that gross.

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.

Leonard: My point is, while you're spending all this time on your own, building computers or practicing your cello, what you're really doing is becoming interesting. When people finally do notice you, they're gonna find someone a lot cooler than they thought. And for those of you that were popular in high school, it's over, sorry. Thank you. Congratulations.

Leonard: [to a "smiling" Sheldon] We're here to see Koothrappali, not kill Batman.

Howard: Bernie, this is our kid's name. I think we should both agree.
Bernadette: You're right. We both made this baby.
Howard: Thank you.
Bernadette: And I carried it, had to stay in bed for four months, sacrificed my body and my job, and soon it's gonna burst its way out of me like the Kool-Aid Man.
Howard: Exactly. Fifty-fifty.

Penny: Okay, we're gonna start with some nice breathing exercises. (inhales, exhales)
Bernadette: Sorry. I can't think of anything except how flat your belly is.
Penny: Oh, thank you.
Bernadette: Go put on some more clothes, you bitch.

Howard: I can't believe her. She knows I don't want to name the baby after her dad.
Amy: What did you want to name him?
Howard: I don't know. We were gonna wait until we saw what he looked like.
Amy: Well, it's a baby. Her dad's a wrinkly bald man. That wasn't gonna break your way.