Leonard: What am I supposed to do?
Penny: Err, keep your mouth off other women.

Raj: Hey, you should totally get it. In fact, I'll buy it for you.
Stuart: Sold!
Emily: Raj, you don't have to do that.
Stuart: Too late! No returns!

Penny: Wait, what is wrong with you two? He was talking about television during their date night.
Sheldon: Oh, not just date night. Our 5th anniversary.
Penny: Okay, see, that's even dumber than you wondering if being bitten by a goat would give you the powers of a goat.
Sheldon: If that happens, don't make me wait ten years to watch you eat a tin can.

Leonard: That was really intense.
Penny: Well, now we know, next time we go to the farmers' market, the order is petting zoo first, then buy vegetables.

Penny: Um, I'm free tonight.
Leonard: Are you saying you want to get married?
Penny: Vegas isn't that far away.
Leonard: I'm in. Let's do it.

Emily: If I stick a light bulb on this, will it make a great lamp for my bedroom?
Raj: You're kidding, right?
Emily: Oh, is this freaking you out?
Raj: I guess I'm just more of a Pottery Barn, Crate and Barrel kind of guy. Maybe Pier 1 if I really want to cut loose.

Sheldon: My aunt and uncle were married 63 years. Towards the end, it was like watching cheese melt.

*Stuart's phone rings*
Howard: You need to take that?
Stuart: It's just my dad, probably calling to wish me a happy birthday. I'll call him back. You were saying?

Leonard: I can do that. From now on, this mouth, you and food. That's it.

Penny: All right, well, I want it in a church.
Leonard: Fine. I want black-tie.
Penny: Fine. I want to release butterflies.
Sheldon: Seriously? Airborne worms?

Penny: Thanks for cooking.
Leonard: My pleasure.
Penny: That carrot was delicious.
Leonard: Yeah. I wish I'd fought harder for the rest of 'em.

Penny: Still haven't heard from her?
Sheldon: No, and I'm confused. It's been nearly 24 hours. Amy should have figured out she's wrong by now.

Leonard: It's not just the date. We haven't talked about anything. Big wedding, small wedding, indoor, outdoor...
Sheldon: Outdoor? Oh. I can RSVP no right now.

Leonard: I'm going to guess that your main concern is the time commitment of watching an entire season of a new show.
Sheldon: Oh, no, not just a season. If I'm in, I'm in for the whole run, even if the quality declines.
Leonard: I get it. Smallville almost wrecked you.
Sheldon: Exactly. You know, I waited ten years to see a guy everyone knows can fly, fly.

Penny: Why is everyone so concerned with us setting a date? We're committed to each other. We're happy. A ceremony isn't gonna change anything.
Sheldon: So you're never getting married? It's his whining, isn't it?
Leonard: Sheldon, I'm not a whiner.
Sheldon: It's amusing that he doesn't hear it.