Leonard: Why do I have to talk to Penny? She's not my girlfriend.
Sheldon: You invited her to lunch four years ago, everything about her is on you: you make it so!

Leonard: Why would you buy peppermint schnapps?
Penny: Because I like peppermint, and it's fun to say schnapps!

Raj: The only thing I've learned in the last two hours is that American men love drinking beer, pee too often, and have trouble getting erections.
Leonard: Focus on the game, not the commercials, Raj.
Raj: I'm just saying, maybe if you people cut back on the beer, you could get out of the bathroom and satisfy your women without pharmaceutical help.

Leonard: So don't watch TV. Read a book.
Sheldon: And be a social pariah? Now you know that's not my style.

Leonard: In what universe is that a present?
Sheldon: It's not a present. It's the present. There's you and me. It's Penny and Amy. We're playing Pictionary. In the present.

Leonard: I think any university would want you -- except, of course, any university that had already had you, because they would have already wanted you, before they, you know, got you.
Sheldon: From the mind that brought you "hi-lo."

Sheldon: Is the whip sound app contextually appropriate here?
Leonard: Uh, it is, but I think you might have waited too long for it to be funny.
[whip cracks]
Leonard: [Everyone laughs] I was wrong; it was still funny.

[knock] Amy. [knock] Amy. [knock] Amy.

Leonard: What were you doing at Penny's?
Sheldon: Well, we had dinner, played some games, and then I spent the night. Oh, and you'll be happy to know that I now have a much better understanding of "friends with benefits"

Sheldon: It's doubtful that his mother will be over-impressed with a woman whose biggest achievement was memorizing the Cheesecake Factory menu.
Penny: Hey, it's a big menu! There's two pages just for desserts!
Leonard: And those specials, they change every day!
Penny: Okay, it's lame when I say it, it's just ridiculous when you pile it on.

Leonard: Raj, you're our group historian. Has Sheldon ever begged before?
Raj: Three times. He begged the Fox network not to cancel 'Firefly.' He begged the TNT network to cancel 'Babylon 5.' And when he got food poisoning at the Rose Bowl Parade, he begged a deity he doesn't believe in to end his life quickly.

Leonard: You're my woman. I'm going to make you feel things you have never felt before.
Priya: Leonard
Leonard: That's right, say my name and beg me for more because I'm going to give it to you.
Priya: My parents are here.
Priya's father: Hello, Leonard, if I may also say your name.

TBBT Quotes

Oh, Bernadette, please play my clarinet.

Raj's poem

Sheldon: I'll have a diet Coke.
Penny: Can you please order a cocktail? I need to practice mixing drinks.
Sheldon: Fine... I'll have a virgin Cuba Libre.
Penny: That's... rum and Coke without the rum.
Sheldon: Yes, and would you make it diet?