Howard: Okay, let me stop you right there. We absolutely know our invention will not be used to destroy the world.
Leonard: How?
Howard: Because no one from the future has come back to kill us.

Sheldon: Excuse me, excuse me, can I please see a show of hands? Who here takes issue with this person cutting the line?
Guy: Told you.
Sheldon: Well, what a sad state of affairs. That you've all been so ground down by life, you don't even notice when someone disrespects you.
Howard: I can't believe we're gonna get beat up, and it's not because of your chair.

Howard: There's fuel leaking and we're still going to go?
Mike: Don't lose your Froot Loops, Froot Loops.
Dimitri: This happens a lot. Nine times out of ten, no problem.
Howard: What happens on the tenth time?
Dimitri: Problem.

Leonard: You're kidding. 3-D?
Bernadette: That's what I hear.
Howard: Then the studio must have real faith in it.

Howard: Now, inside, we've got motion detectors, infrared sensors, and cameras connected to a server running state-of-the-art facial recognition software.
Leonard: Where did you get all this stuff?
Howard: I got a buddy over at the Department of Defense.
Leonard: He just gave it to you?
Howard: I'm sure he would have if I had asked. Ironically, their security isn't all that good.

Howard: Oh, come on. So you were the victim of a crime. That's part of life. When my great-grandfather first came to this country, he put all his hopes and dreams into this little butcher shop he ran on the Lower East Side of New York. You know what happened? Every customer who walked into that butcher shop and asked for a pound of liver, got ripped off. But, those people moved on, and so should you.

Howard: I just never figured that a guy like me going out with a girl like you would ever have to compete with a guy like that.
Bernadette: Wait a minute, "a girl like me"? What's that mean?
Howard: I'm-I'm--
Bernadette: Are you saying you don't think I'm hot enough to go out with a guy like Glenn?
Howard: No! No, I'm saying exactly the opposite.
Bernadette: I'm too hot to go out with a guy like Glenn?
Howard: Yeah, let's go with that.

Howard: I need to talk to Bernadette.
Penny: Well, I don't think she wants to talk to anyone right now.
Howard: All right, well, could you at least give her a message?
Penny: Yeah, sure, I guess.
Howard: Tell her I'm really sorry, and if she doesn't want to marry me, I get it. But what I really want her to know is the guy that she's disgusted by, is the guy that I'm disgusted by, too. But that guy doesn't exist any more, he's gone, and the reason is because of her. So, if this relationship is over, let her know that she made me a better man, and tell her thank you.

Howard: I was counting on that money. I need to make as much as my wife so I don't have to try so hard in bed.

Bernadette: Uh, I left my phone downstairs!
Howard: Damn, so did I.
Bernadette: Wait, I have my iPad.
Howard: What are you going to do, e-mail 911?

Raj: It is funny when you think about it.
Howard: Maybe to you. You didn't get a $500 traffic ticket.
Bernadette: Because you were driving like a lunatic.
Howard: Hey, if thinking secret government agents are chasing you makes you a lunatic, then yeah, okay.

Colonel Williams: So, which one of you is the brains behind all this?
Howard: It's a group effort, but I guess if we had to pick a main brain, it would be me.
(Sheldon whimpers)

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.

Raj: No offense to her father, but he's not an MIT-trained engineer. Thinking and building is what you do.
Howard: MIT's motto is "Mind and Hand," which just so happens was also my motto as a lonely teenager.

Raj: It looks like a map from Dungeons & Dragons.
Howard: Mm. Except the creature in the crib is a level-nine poop monster.