George: Sheldon, I'm not driving you home. I got practice in minutes.
Sheldon: Then call Mom and tell her to bring them to me.
George: She's working, too.
Sheldon: But I need my goggles!
George: Then use the ones in class. And I don't want to hear about eyebrow lice.
Sheldon: The ones in class are too big for me. What if they fall off and something happens to my eyes? If I go blind, I'll need a Seeing Eye dog, and I'm scared of dogs.
George: Hey! Is this how you plan on acting when you get to college?
Sheldon: No.
George: Good, 'cause you're gonna need to handle stuff like this on your own.
Sheldon: I can handle it.
George: I hope so.

Mary: So he's really good to graduate?
Principal Petersen: He sure is. I got to tell ya, usually when kids leave school after two years, it's not for college. It's for prison or pregnancy.
George: Well, between Georgie and Missy, we may hit the trifecta.
Mary: George!
George: Well, I'm not rooting for it. It's just a thing that could happen.

Georgie: You know what else is nice?
George: Hmm?
Georgie: I get to learn from all your parenting mistakes.
George: I'm starting to think letting you live this long was one of 'em.
Georgie: Like that. I'd never say something so awful to my kid. [George scoffs] Thanks, big guy.

Georgie: A bill? Really?
George: Room and board, buddy.
Georgie: $50 a month for food?
George: The way you eat, I should've gone $50 a week.
Georgie: Laundry services?
George: Your poor mother has to touch your underwear.
Georgie: What's the $10 a month "peema" charge?
George: Oh, P-I-M-A, that's a "Pain in My Ass" tax. My way of getting compensated for you taking years off my life.

Mary: So he's really good to graduate?
Principal Petersen: He sure is. I got to tell ya, usually when kids leave school after two years, it's not for college. It's for prison or pregnancy.
George: Well, between Georgie and Missy, we may hit the trifecta.
Mary: George!
George: Well, I'm not rooting for it. It's just a thing that could happen.

Principal Petersen: Our next young speaker needs no introduction, but that didn't stop him from writing one and making me read it. [laughter] "Fun fact." [audience groans, murmurs] I hear you. "The word 'valedictorian' is from the Latin 'valedicere,' meaning 'to say farewell.' It is primarily used in the United States, Canada, the Philippines and Armenia." Maybe that fact's more fun in Armenia. Please welcome your valedictorian, Sheldon Cooper.
Mary: Yay, Shelly!
Sheldon: Hello. I'm not very comfortable speaking in front of crowds. But there's a technique to reduce stage fright by focusing on one person in the audience and delivering your speech just to them. That's what I'll be doing today. If it weren't for this person, I wouldn't be here right now. They've taught me a lot, and it's by their example that I found the courage to move forward into this new and exciting chapter of my life. Missy... ...this is for you. Change can be scary, but I know we're going to be fine... ...because like you said, "It's okay to be scared. We just have to do it anyway." So if any of my fellow graduates are nervous about the future, know that you're not alone. I suggest you all try to be as brave as my twin sister. That's my plan. Missy, I wish I could give you advice about middle school, but I was so smart, I skipped it. If you make it to high school, we'll talk. Thank you. [applause]

Sheldon: Do you think I can make it from one end of the college campus to the other in under ten minutes, including a bathroom break?
Mary: I don't know. How important is the bathroom break?
Sheldon: Very. The class schedules are designed for fully-grown bladders, and mine is child-sized.
Mary: Then don't put your classes so close together.
Sheldon: Well, it's either this or I move my labs to Tuesday afternoons.
Mary: Is that bad?
Sheldon: Yes. That's when Professor Proton is on.
Mary: Well, we'll tape it, and you can watch it later.
Sheldon: But what if I have a lot of homework and can't get to it until the next day and one of the kids in my class spoils the episode for me?
Mary: Sheldon, has anyone ever spoiled Professor Proton for you?
Sheldon: No.
Mary: Has anyone even talked to you about Professor Proton?
Sheldon: Do you count?
Mary: No.
Sheldon: Then no.