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?

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

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.

President Hagemeyer: Why on Earth would I buy your house?
Sheldon: Not you, the university.
President Hagemeyer: Okay, why would the university buy your house?
Sheldon: We've been over this. Someday, I'm going to win a Nobel Prize. My childhood bedroom is in said home. It's gonna be like the thinking man's Graceland.

Sheldon: [knocks three times] Missy.
Missy: [o.s.] Yeah?
Sheldon: [knocks three times] Missy.
Missy: [o.s.] What?
Sheldon: [knocks three times] Missy.
Missy: [opens door] What?

[Ms. Hutchins walks by Sheldon and Tam's table with her library cart:]
Sheldon: Oh, hello.
Ms. Hutchins: What are you doing here?
Sheldon: Taking comfort in the familiar. Still no wedding ring, I see. That feels good.
Ms. Hutchins: Yeah, feels great.
Sheldon: [to Tam] So, where was I? Right, uh, Houston. Anyway, my father got offered a coaching pos...

Sheldon: There's still so much to do before I go: write my graduation speech, last trip to the comic book store, last lunch with Tam at the high school.
Mary: I didn't know you and Tam were still friends.
Sheldon: Why would you think that?
Mary: Because you never see him.
Sheldon: My favorite kind of friend.

Adult Sheldon: My world had been rocked, but it was nice to know there were some things that would always stay the same, like lunch with my old friend, Tam.
Tam: Why are we here?
Sheldon: This is where we always eat.
Tam: You know I graduated last year.
Sheldon: Oh, good for you. So, where's your food?
Tam: When you invited me to lunch, I thought you meant like a restaurant.
Sheldon: That's okay, I'll share my sandwich.
Tam: You still don't eat the crust?
Sheldon: Cutting them off gives my mother purpose.

President Hagemeyer: Okay, stop. You know, I've always gone out of my way to do anything to make you happy.
Sheldon: I love that about you.
President Hagemeyer: But... how can I say this nicely... you're Caltech's problem now, so, yay. [chuckles]

Mary: This is our little boy's room.
Sheldon: [geiger counter clicking] Might want to stay there until I finish my sweep.
George: What are you doing?
Sheldon: You said the realtor was coming over today. I wanted to make sure my room wasn't still radioactive.
Mary: Oh, it was never radioactive.
Sheldon: We don't know that. I did have radioactive material.
George: There was no radioactive material. The FBI stopped him before he got any.
Sheldon: Oh, you're talking about the uranium I tried to buy. I'm referring to the americium isotopes I was using to make a nuclear reactor.
George: [to the realtor] Don't write that down.

Missy: Are you nervous?
Sheldon: Yes. What if no one likes me in California?
Missy: No one likes you here.
Sheldon: No one understands me here. There's a difference.

George: What's happening?
Mary: We are leaving for the bluebonnet picture at 4:00. Don't be late.
George: Wouldn't miss it. Hey, you want a ride to school?
Missy: Nah, I'll take the bus.
George: Suit yourself. See y'all later.
[Sheldon doesn't look up from his bowl of cereal.]
Mary: Four o'clock.
[George nods and leaves]

Sheldon: If I get stung by a bee, I'm turning you in to child protective services.

Meemaw: What am I smelling?
Sheldon: I'm wearing peppermint oil. It's a natural bee repellant.
Missy: You smell like a candy cane.
Sheldon: Do not lick me.

Mandy: What's going on?
Coach Wilkins: Mary, we got some bad news.
Mary: Where's George?
[Missy and Meemaw wander over and stand next to Mary]
Principal Petersen: I'm so sorry. He, uh... He had a heart attack.
Missy: But he... he's okay, right?
Principal Petersen: He's gone.