Principal Petersen: I got a buddy who coaches at Rice who was asking about you.
George: Great college. So, what'd you tell him?
Principal Petersen: Well, I told him you wouldn't be interested, you're pretty happy here.
George: What? Why would you do that?
Principal Petersen: So you're not happy here?
George: No, of course I'm happy here, it's just...
Principal Petersen: Aw, I'm just messing with you. [chuckles] I told them you'd be a fantastic coach and they'd be crazy not to take you.

Sheldon: You wanted to see me?
Principal Petersen: When don't I want to see you, Sheldon? Come in. I have something I'd like to give you. This is a key to the faculty restroom. No students allowed. One person at a time. And unlike the other restrooms, this one gets cleaned every night.
Sheldon: Thank you.
Principal Petersen: No, Sheldon. Thank you.
Sheldon: You're welcome.

[on the "Why Sheldon Cooper Should Go to College" tape:]
Principal Petersen: A student like Sheldon comes along... once in a lifetime. This school is not gonna be the same without him. But I know he's gonna do great things. And I'm honored to have been a small part of it.

George: Hey, Tom, you got a minute?
Principal Petersen: Pretty busy. Make it quick.
George: It turns out I don't need that raise.
Principal Petersen: What happened, you win the lottery?
George: No, no.
Principal Petersen: Aw, George, I am so sorry.
George: Well, what can you do?
Principal Petersen: Listen, I cleared your raise already, why don't you just keep the money.
George: Oh, no, I couldn't do that.
Principal Petersen: No. No, I mean it. It's yours.

Mr. Givens: Caltech? Fantastic.
Sheldon: For Caltech? I know.
Mr. Givens: Mm. Well, I'm sure you're gonna do great things.
Sheldon: I hope so. I intend to. I'm being modest. I will.
Mr. Givens: You're taller, but you're still the same.
Sheldon: It's fun, isn't it?
Mr. Givens: Okay. Good luck at Caltech, Sheldon.
Sheldon: I don't believe in luck.
Mr. Givens: Well, here's hoping that a random universe works out in your favor.
Sheldon: Thank you. Bye.
Mr. Givens: Hmm. [to his class] That young man might change the world someday. Or blow it up. Who's to say?

Sheldon: [knocks three times] Meemaw. [knocks three times] Meemaw. [knocks three times] Meemaw.
Meemaw: [opens door] Does that mean I have to say hello three times?
Sheldon: No, that would be crazy.
Meemaw: Agreed.

George: It's nothing like that. I got a job offer from Rice.
Georgie: A-Roni?
George: University.
Georgie: You can understand the mistake.