Sheldon: So, can you get it working?
Howard: I'm an MIT-trained engineer. I've built components for the space station.
Sheldon: I thought the zero-gravity toilet didn't work.
Howard: It worked fine. It just wasn't designed for Russian cosmonauts and their potato-based diet.

Sheldon: Boy, oh, boy, that's a lot of pieces. You know what they all do, right?
Howard: Yes, of course.
Sheldon: What about this one? *holds up a mini logic circuit*
Howard: Well, I... How familiar are you with miniaturized integrated logic circuits?
Sheldon: Not very.
Howard: That right there is a miniaturized integrated logic circuit.

Howard: All right, playtime's over. Let's open this baby up.
Sheldon: Won't that void the warranty?
Howard: Sheldon, I have a master's degree in engineering. I wipe my bottom with warranties. Except for AppleCare. That pays for itself in the long run.

Raj: It's like the best one they make, I just can't get it to work.
Howard: I'll figure it out.
Raj: It streams HD videos straight your phone when it's flying.
Howard: Nice. Where were you when I was single?

Sheldon: Perhaps Howard meant passive-aggressive like asking our group to help on your project, and then only choosing Leonard.
Raj: Look, I'm sorry I hurt your feelings, but you do have strong personalities and always end up taking over.
Howard: It's not always.
Leonard: What about when we went to Comic-Con and dressed like Jabba the Hutt? You got to be Jabba's head, and I got to be his fat slug butt.
Sheldon: We looked great.
Leonard: You let a guy sit on me.
Howard: He was dressed as Princess Leia. It made a nice picture.

Howard: First take a picture with me.
Bernadette: Why?
Howard: Well, Raj and I always talked about learning how to make cocktails like this together, so I taught myself and I'm putting this on Instagram so he can see it and feel like a turd. Say cheese!

Bernadette: What's going on in here?
Howard: I am making molecular cocktails. This sphere is actually a cosmopolitan.
Bernadette: Oh. How do you drink it?
Howard: Just put it in your mouth and pop it like a zit.

Sheldon: Hey, would you like to hear some songs I've rewritten to get children interested in the hard sciences?
Howard: Sure.
Leonard: Really?
Howard: Yeah. I like music. I like science. I like making fun of Sheldon. Hit it!

Josh: So, I have to ask, was the robot sexy?
Howard: It was actually just a mechanical hand.
Josh: 'Cause that's all you need, right?
Howard: You are my brother.

Josh: I can't believe my brother's an astronaut. That's amazing. What was it like?
Raj: Listen, dude, it's time for you to hit the road.
Howard: Hey, hey, the young man asked a good question.

Raj: What do you want to do?
Howard: I don't know. I... I'd just like him to go away. I can't deal with this.
Raj: All right, I've got your back.
Howard: Thank you. Come on. And I'd like to point out this wall just provided a lot of privacy!

Josh: This is a little weird, but a lawyer was trying to contact my father, because his name was still on the title for this house.
Howard: W... uh, who's your father?
Josh: Sam Wolowitz.
Howard: S-Sam Wolowitz is my father.
Josh: I know.
Howard: Well, wait, so if we have the same father... I mean, are you saying you're my half-brother?
Josh: I think so.
Howard: Bernadette, weird things are happening out here!

Howard: Settle this. Those little animated pictures on the Internet, are they called "gifs" or "jifs"?
Leonard: Well, the G stands for "graphics." That's a hard G, so I'd say "gif."
Raj: What? The guy who invented it says it's "jif."
Howard: I'm sorry, do you mean the guy or the juy?

Howard: Did you play badminton or sadminton?

Howard: And just so you know, when this started I was going to put the TARDIS in a discreet corner of the house. But I've since turned mean and now it's going in the middle of the living room on a rotating platform with a sign that says "Suck It".