I do not have to urinate. I am a master of my own bladder. Drat.

The four of you are three of my closest friends, and one treasured acquaintance.

My new computer came with Windows 7. Windows 7 is much more user-friendly than Windows Vista. I don't like that.

I'm not crazy; my mother had me tested.

Sheldon: You know, the more I think about it, the "mobster sauce" couldn't possibly contain chunks of mobster.
Leonard: And why is that?
Sheldon: It was listed under "Seafood."
Leonard: Maybe they were mobsters who "slept with the fishes."

I disinfected the kitchen and the bathroom, and now I thought I'd learn Finnish.

If outside is so good, why has mankind spent thousands of years trying to perfect inside?

Raj: Come on, let's get a drink.
Sheldon: I don't drink.
Raj: Well I do, and when my wingman is carrying a Green Lantern lantern, I drink a lot.

Sheldon: I'm sorry Raj, I have no desire to salute any article of clothing tonight, much less one that's linked to race riots in the 1940s.
Raj: Race Riots?
Sheldon: The "Zoot Suit Riots?"
Raj: Ohhhh. I always thought that was some sort of after-Christmas sale.

Raj: We'd just see what's what.
Sheldon: That's a semantically null sentence.

Raj: Good news guys, I got the four hour special edition of Watchmen.
Leonard: Got it.
Wolowitz: Seen it.
Sheldon: Detailed analysis posted online.

Leonard: When we watch Frosty the Snowman, he roots for the sun.
Sheldon: Excuse me, but the sun is essential for all life on earth. Frosty is merely a bit of frozen, supernatural ephemera in a stolen hat. A crime, by the way, for which he is never brought to account.

TBBT Quotes

Penny: Here's a question-- as an alien pretending to be human, are you planning to engage in any post-prom mating rituals with Amy?
Sheldon: There are post-prom mating rituals?
Penny: Not always. Unless your date drives a van with an air mattress, then always.
Sheldon: Well, if it's part of the prom experience, then I'm open to it.
Penny: You're kidding.
Sheldon: I may be an alien, but I have urges.If Amy wants to copulate by firing her eggs into space, well, then, I will happily catch them with the reproductive sac on my upper flermin. I'm not the best at reading facial cues, but I can see that you're a little turned on.

Sheldon: Why do you have the Chinese character for "soup" tattooed on your right buttock?
Penny: It's not "soup," it's "courage."
Sheldon: No it isn't. But I suppose it does take courage to demonstrate that kind of commitment to soup.
Penny: How'd you see it? You said you wouldn't look.
Sheldon: Sorry. As I told you, the hero always peeks.