Sheldon: Camouflaging bald spots. That's primarily a male concern. Perhaps we could expand our market.
Penny: How are flower barrettes going to appeal to men?
Wolowitz: We add Bluetooth.

Sheldon: Everything is better with Bluetooth.

Sheldon: Okay, that, right there, that equivocation and self-doubt, that is not the American spirit. Did Davy Crockett quit at the Alamo? Did Jim Bowie?
Howard: They didn't quit. They were massacred by, like, a gazillion angry Mexicans.

Leonard: Are you thinking about adding a desiccant like calcium sulphate?
Howard: Actually, I'm thinking about this one stripper named Vega. But sure, calcium sulphate could work.
Sheldon: Let's think out of the box for a moment. How about a molecular sieve?
Leonard: Oh!
Penny: I've got a spaghetti strainer in the kitchen.
Sheldon: Wow.

Sheldon: I'm sorry, coffee's out of the question. When I moved to California I promised my mother that I wouldn't start doing drugs.

Sheldon: When I signed for this package, I was deputized by the United Parcel Service, and entrusted with its final delivery. I now need you to acknoweldge receipt of the package so I'm fully indemnified and no longer liable.
Penny: Sheldon, it's just a box of rhinestones.
Sheldon: Well, the content are irrelevant. A legal bailment has been created. Does that mean nothing to you?
Penny: It means nothing to anybody.

Wolowitz: Oh, stop it with the fake third world crap. Your father is a gynecologist and you had a house full of servants.
Raj: We only had four servants, and two of them were children.

Howard: Too bad. You know the rules of Secret Agent Laser Obstacle Chess. Leonard died again, Sheldon. You're up.
Sheldon: Despite my deep love of chess, lasers and aerosol disinfectant, I must forfeit.
Leonard: Why?
Sheldon: Because it's almost eleven o'clock.
Leonard: So?
Sheldon: So ... Penny has a don't knock on my door before eleven o'clock or I punch you in the throat rule.

Sheldon: Bailment describes a relationship in common law where a physical possession of personal property, or chattels, is transferred from one person, the bailor, to another person, the bailee.
Penny: Yeah, yeah, yeah, yeah. Look, look, look. I started a business.
Sheldon: Obviously, not a cleaning business.

Penny: Come on. What about the living organism of the workforce and the American spirit and Jiminy Crockett at the Alamo?
Leonard: Davy Crockett. Jiminy Crockett was a cricket.

Penny: Sheldon, don't you get it? If this takes off, I won't have to be a waitress anymore.
Sheldon: But then who will bring me my cheeseburger on Tuesday nights?
Penny: Another waitress.
Sheldon: What's her name?
Penny: I don't know.
Sheldon: And you're going to let her handle my food?
Penny: Nancy. Her name is Nancy.
Sheldon: I think you're just making that up.
Penny: Sheldon, I'm sorry about your hamburger, okay? I just don't want to be a waitress for the rest of my life.
Sheldon: Cheeseburger. I get a cheeseburger.
Penny: Fine, cheeseburger.
Sheldon: Maybe I'd be better off with Nancy.

Penny: Well, it's a little juvenile. I mean, it kind of looks like the MySpace page of a 13-year-old girl.
Leonard: No, it doesn't.
Howard: Please, Dateline could use it to attract predators.

Sheldon: I believe I'm hearing some negativity on the factory floor.
Penny: So?
Sheldon: Penny, the labor force is a living organism that must be carefully nurtured. Any counterproductive grumbling must be skilfully headed off by management. Observe. Hey! Less talk, more work!
Penny: Nicely done.
Sheldon: Thank you. You hear any union talk, you let me know.

Sheldon: Alright, let me put it this way. Your gross receipts on this one order will be over $3,000 for one night's work.
Penny: You guys get started.
Leonard: What are you doing?
Penny: Going online to buy shoes!

Leonard: Sheldon, we still have 380 of these things to make.
Sheldon: I have complete faith that you will make them. Good night.
Penny: Leonard?
Leonard: Yeah, no. But, Sheldon, without your insight and leadership this entire enterprise will surely fail.
Sheldon: You're right, of course.