Sheldon: I've seen things. Lady things.
Amy: Listen to me. That is not the way they usually look.
Sheldon: It doesn't matter. This is no way to make new humans. People coming out of people. Some kind of dirty magic show.

And turn the bedroom floor into a amniotic slip and slide

Sheldon: The second I go out of town you throw a Christmas party without me?
Amy: Yeah, kind of.
Sheldon: That's so thoughtful. You guys are the best.

Penny: Oh, that's great. You're gonna be an uncle. Uncle Sheldon.
Sheldon: No. I'll be Uncle Dr. Cooper.

Amy: It's a beautiful night. Why don't you and I go for a nice walk together?
Sheldon: Everything is just sex with you, isn't it?
Raj: Sheldon, I think you might find the support you're looking for, if you realize that relationships are a give and take. She can only be there for you as much as you are for her.
Amy: Thank you, Rajesh.
Raj: And, Amy, you need to be patient with Sheldon, instead of pressuring him to accept intimacy on your terms.
Amy: You should probably go.

Sheldon: Well, I'm not just some trained monkey dancing for coins.
Leonard: Of course not. People love trained monkeys.

I just vomited on a lot of clowns.

Bernadette's Dad: Hey, Sheldon, what do you say we go outside and throw around the old pigskin.
Sheldon: This is a Jewish house. I don't think they have pigskins.
Mrs. Wolowitz: Did someone say "pigskin"?

She's so tiny. It's funny when she's mad.

Bernadette's Dad: I don't know what's scarier: the bathroom clowns or the woman that put them there.
Sheldon: All I know is you can only fit one of her in a car.

Sheldon (burping): Two, three, eight, four, six. That's all I can do without throwing up.
Bernadette's Dad: That's not what I expected when you said you were gonna burp "pie."
Mrs. Wolowitz: Did someone say pie?

Sheldon: They passed against a nickel defense. They should have run off tackle.
Bernadette's Dad: How the hell do you know that?
Sheldon: My father loved football. He always made me watch before I was allowed to do my homework.

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?