Bernadette: Can we really help?
Howard: While we finish soldering these boards, it'd be great if you guys could wrap these pipe fittings with Teflon tape.
Leonard: I'll show you how to do one.
Penny: Hey, wouldn't it be funny if after all your years of hard work, I'm the one who makes a scientific breakthrough? (To Bernadette) He doesn't think that's funny.

Raj: Oh. You know what? I'm gonna let them know that I'm here with you and that they're busted.
Penny: No. You know what? Don't, don't. Let's let them think they're getting away with it.
Bernadette: Yeah, let's see how deep a hole they can dig for themselves.
Penny: Mmm-hmm.
Raj: Interesting. I mean, it's not testicles on a cryostat, but I like it.

Amy: I got here as quickly as I could.
Sheldon: You're too late.
*Sheldon plays "Taps" and drapes a cloth over his laptop."
Amy: Sheldon, this is silly.
Sheldon: You got emotional when that lab monkey died.
Amy: That lab monkey told me he loved me in sign language.

Raj: Hey. Where are the guys?
Penny: Oh, they went to the store to get solder, which is metal you melt to make science things.

Bernadette: Since when do you work on weekends?
Raj: I'm an astrophysicist. The stars don't take a day off.
Penny: You were home alone and had no one to play with?
Raj: Well, the cleaning lady was there, but she doesn't like me.

Sheldon: You look amazing. I mean, this resolution is remarkable.
Amy: (On Skype) I really had to go home for this?
Sheldon: Yes, but it's like you're right here in the room.
Amy: And yet, I'm not.
Sheldon: But I feel like I could reach out and touch you.
Amy: And yet, you can't.
Sheldon: I know.

Amy: That's me, your emotional outhouse. You know, if you ever decide you want to do something about this, I'm here for you.
Sheldon: Thank you. I wouldn't even know how to begin.
Amy: Baby steps, I guess.
Sheldon: I suppose I could try getting rid of the golf ball.
Amy: Oh, okay.
Sheldon: I will always have the dent to remember it by.
Amy: You did it. Do you feel okay?

Amy: Sheldon, just tell me.
Sheldon: It might be easier to show you.
Amy: Okay.
Sheldon: We'd have to take your car.
Amy: All right.
Sheldon: And I'm gonna need you to sign a non-disclosure agreement.
Amy: Well, I signed one before we slept together. Why not now?

Howard: I don't know if we have enough solder to finish these circuit boards.
Leonard: We had a full spool yesterday.
Howard: What can I say, I play hard, I solder even harder.

Leonard: This is cool. When was the last time you and I built something together?
Howard: Scientifically? A little over a year ago. LEGOs? Last week in my room.
Leonard: If there was a Nobel Prize for Millennium Falcons that fall apart when you pick them up, we'd be set.

Penny: Hey, guys.
Leonard: Hey. What are you doing here?
Bernadette: We heard there were some sexy scientists working hard all weekend.
Penny: Yup, so we brought you some lunch and we are gonna go look for 'em.

Amy: So, no one else knows about this?
Sheldon: Only you.
Amy: Thank you for trusting me.
Sheldon: What good is having a girlfriend if you can't unload your psychological sewage on her?
Amy: That's me, your emotional outhouse.

Cinema Worker: Hey, guys, thank you for being a part of our test screening. You're about to be one of the first audiences to see Suicide Squad.
Leonard: Hey, you were right.
Howard: Well, I keep telling you, good things happen to bad people.

Sheldon: I suppose I should set this up. Or would you like to rob me of that, too?
Amy: Knock it off or I'll start making W-H sounds for words that just have a W.
Sheldon: You wouldn't.
Amy: Whatch me.

Penny: I mean, it's crazy, isn't it? I moved here from Nebraska to be an actress, and now I'm sitting in an engineering lab at Caltech helping to build a prototype for a high-tech guidance system.
Bernadette: It is crazy. It's also crazy that I've made fourteen of these and you've made three.