Sheldon: Oh, dear lord, Leonard, look. He's still available for parties and events. We should hire him.
Leonard: Hire him to do what?
Sheldon: Well, whatever we want. Hang out, do experiments, make him take 12 pictures with us so we can make a calendar.

Leonard: The interface is pretty simple. You put your horizontal X coordinate here, vertical Y coordinate here. When you're happy with those, you press this button.
Penny: Got it.
Sheldon: Leonard, you'll never guess who I just found online. (A foam missile fires at Sheldon) Hey!
Leonard: Nice shot.
Penny: Eh, his giant head did most of the work.
Sheldon: Very mature. You're lucky I'm out of silly string.

Sheldon: It's happening. Leonard, it's happening. Professor Proton is coming to our house.
Leonard: You're kidding.
Howard: You mean the guy who used to host that lame kids show?
Sheldon: And you just got yourself uninvited. See? I told you I'd find a tactful way to do that.

Raj: It's very simple. For breakfast, she has an egg-white frittata. Feel free to give her a choice of home fries or an English muffin, but not both. We're watching our weight. Uh, for dinner, something simple, a veal chop, some scampi, whatever you like.
Howard: Classy dog.
Raj: Yes. Also, don't forget to close the toilet or she'll drink out of it.

Howard: You're my wife. You're supposed to be on my side.
Bernadette: I'm always on your side.
Howard: Then why are you trying to take this away from me? Being an astronaut is the coolest thing I'm ever gonna do. If I stop talking about it, then I'm just...
Bernadette: Just what?
Howard: Just plain old Howard Wolowitz again.
Bernadette: Plain old Howard Wolowitz is the best guy I know.
Howard: You're just saying that.
Bernadette: No, I'm not. I married him. On purpose. Come here.
Howard: I love you.
Bernadette: I love you, too.

Penny: Oh, my God, you guys look adorable.
Bernadette: Thanks, so do you. Slutty cop?
Penny: No, sexy cop. Slutty cop only came with a skirt and two badges.
Bernadette: And Albert Einstein?
Leonard: Ja, und later zhe's going to arrest me for goinc fashter zan da shpeed of light.
Penny: I thought we said in the car, no accents?
Leonard: Sorry, Officer.

Howard: I'm sorry. I just don't want to go.
Bernadette: Hey, I just spent the last three hours colouring myself blue. I'm gonna be washing paint out of my Smurf for a month!

Sheldon: What if we were to go as dinner table favourites salt and pepper?
Amy: You know salt makes me retain water and my cousin William was ground to death in a pepper factory accident.

Howard: To tell you the truth, I'm not really in the mood.
Bernadette: What are you talking about? It'll be fun. All your friends'll be there.
Howard: Yeah, some friends. They all think I'm boring. Maybe you should go without me.
Bernadette: No, if I'm there alone, people might think I'm just a really short person from Avatar.

Bernadette: How do I look?
Howard: Fine.
Bernadette: Uh-oh, is someone a little blue? Come on, Howie, thats like the funniest thing I've ever said in my life.

Amy: How about Raggedy Ann and Andy? I loved them growing up.
Sheldon: No, I don't think so. Those dolls represent three things I do not care for: clowns, children and raggedness. I think it's a lost cause.

Howard: Boy, it's nice to sleep in a bed with gravity again. Did I tell you about the night my retainer floated out of my mouth and into the air lock?
Bernadette: Yeah, you mentioned it once or twice.

Howard: What?
Bernadette: Howie, I know you went to space. I'm incredibly proud of you. But you might want to try and not bring it up every minute.
Howard: I don't talk about it every minute.
Bernadette: Tonight at dinner you went on bout it for an hour straight.
Howard: What was I supposed to talk about? We were eating at Johnny Rockets.

Raj: Oh, by the way, can I borrow your bull-whip and fedora?
Howard: Yeah, sure, whatever.
Raj: I was thinking of dressing up as Indiana Jones' mocha-skinned love child, Indian Jones.

Penny: Whoa! That is very cool.
Leonard: Sometimes I like to turn this on and pretend I'm the super villain Magneto.
Penny: Getting a little less cool, Leonard.
Leonard: But what I really am is a very smart scientist who understands the mechanics of the universe and is wearing the sexy black underwear you bought him.
Penny: There we go.