Penny: Does the baby have a name yet?
Howard: We have named her Halley.
Penny: Oh!
Leonard: Oh, like Halley's comet.
Howard: Exactly. Also like the comet, Bernadette said she's not gonna have sex with me for another 75 years.

Bernadette: Not every girl dreams about being a mom. Sometimes you think you're never gonna have kids and one day you wake up and you're pregnant. And it doesn't matter that your career's going great right now and that you and your husband never even got to go anywhere taped to a dog!

Amy: I made your favorite oatmeal - plain.

Bernadette: You know, I just read that a team at MIT developed a device that helps people read human emotions.
Leonard: And you think we can get those guys to reprogram Sheldon? Cool.

Leonard: It's not just Howard and Bernadette. I mean, look how far we've all come.
Penny: Hmm.
Stuart: You two got married.
Amy: Sheldon and I are living together.
Sheldon: But if my mom asks, we have bunk beds.
Leonard: Penny was a struggling actress when we met, and now she's a successful pharmaceutical rep.
Penny: Okay, you don't have to say "struggling" every time. You can just say actress.
Stuart: Howard went to space.
Amy: Bernadette got her doctorate.
Leonard: Sheldon, Howard and I are working with the government on our quantum gyroscope.
Amy: We've all come a long way. There's a lot to be proud of.

Sheldon: And you realize what the next step is?
Amy: Set up a second culture and try to replicate our results.
Sheldon: Uh, no. We lock that door, lower our underpants a little, and make a baby.

Sheldon: B.R.B. That's short for "be right back." I'm saving so much time!

Penny: Do boys have flowers?
Leonard: Who knows what he has down there.

Leonard: Buddy, buddy, listen, nothing bad is going on, she just she just didn't want you to know that the work on her apartment was finished a couple weeks ago.
Sheldon: I don't understand.
Leonard: She's enjoying living with you and she didn't want it to end early.
Sheldon: So, she's deceiving me in order to spend more time with me?
Leonard: Yes.
Sheldon: Oh. Well, I feel both flattered and hurt. Like when people say I look like that skeleton from Nightmare Before Christmas.
Raj: Oh my God, that's who you look like.

Bert: Okay, well, thanks for coming by. You're nice people.
Penny: Well, so are you. In fact, you know what? We will never take you for granite. Did you get that? Granite? A little geology joke.

Bernadette: But I thought I'd be more excited.
Dr. Koothrappali: Oh, being excited isn't a guarantee of anything. Rajesh's mother was thrilled when she was pregnant with him. After he was born, she doted on his every move. And you know what happened? He broke her heart, moved halfway around the world, and dates only poor white women. So you never know.

Bernadette: It's okay, I'm just being emotional about this. Can you not tell Howard?
Stuart: Well, don't you think it'd be healthier if you told him what's going on with you?
Bernadette: Don't you think it'd be healthier if you had your own apartment, grown man?
Stuart: Your secret is safe with me.

Sheldon: No matter where I am, this will always be my spot.

Penny: You can stay in Leonard's room, and we'll stay at my place.
Amy: You're sure that's not an inconvenience?
Penny: No, not at all.
Leonard: And we live with Sheldon, so the word "inconvenience" has really lost all meaning.

Raj: I can't believe Penny's gonna get to go, and I'm not.
Sheldon: You can always watch the panels online. Oh, boy, we do say that a lot.
Stuart: "Panels." Just wanted to be included.