Principal Petersen: Just because she's having fun with your grandkid doesn't mean she wants more babies.
George: I don't know. She's definitely brought it up before.
Principal Petersen: Oh, boy. There's gonna be a new zombie in town.
Coach Wilkins: Chunky zombie. [Wilkins and Petersen laugh]

Coach Wilkins: [supressing sobs] Just miss him, you know? [blows nose]
Mary: I do.
Coach Wilkins: I used to... I used to mess with him by telling him he was my best white friend, you know. But... but the truth is that he was my best friend.
Mary: And you were his.
Coach Wilkins: Oh, that's nice to know. I'm not helping, am I?
Mary: That's okay. Are you hungry? We've got lots of food.
Coach Wilkins: [blows his nose] Yeah, I-I could eat.
Mary: Hope you like casserole.
Coach Wilkins: I do like casserole.

Coach Wilkins: I cleaned out George's desk. Uh, thought you might like his stuff.
Mary: Thanks.
Coach Wilkins: I just wanted you to know that if there's anything that you or the kids need... [crying] I'm here for y'all.
Mary: Oh, Wayne.
Coach Wilkins: I mean it. Anything that you need.
Mary: Thank you. [hugs Wayne] I appreciate that. [Wayne sobs] You doing okay?
Coach Wilkins: Oh, yeah, yeah. Don't worry about me. [sobs]
Mary: Okay. Let me get you a tissue.

George: Great practice. Let's gather round, take a knee. All right, Coach. They're all yours.
Coach Wilkins: Thank you, George. Look at you guys. Young, strong, all your hopes and dreams in front of you. None of you have any idea of what's out there waiting for you.
George: Wayne, where you going with it?
Coach Wilkins: A team requires trust. Sure, you can count on your teammates when the ball is snapped. But can you count on them when they're away at a teachers conference with the woman you were gonna spend your life with? Hmm?
George: Okay. "Team" on three.

Adult Sheldon: I always believed my extraordinary life would be chronicled in numerous biographies. I even used to make up my own titles. My favorites were: "From Texas to Success: the Sheldon Cooper Journey", and "Cooper for Kids", a pre-school introduction to quantum gravity in superstrings. The point is, I knew my formative years would be well-documented, which meant I needed to polish up some of my early academic credentials, especially East Texas Tech.

Sheldon: If W is the Kähler metric on the algebraic variety X, and the canonical bundle KX is trivial, then X is what?
Dr. John Sturgis: A Zariski space.
Sheldon: Wrong. [slaps Dr. Sturgis's hand with his pencil]
Dr. John Sturgis: Hey!
Dr. Linkletter: Obviously, it's an elliptic curve.
Sheldon: Wrong. [slaps Dr. Linkletter's hand with the pencil]
Dr. Linkletter: Hey!

Dr. John Sturgis: Why are you hitting us?
[flashback:]
Mei-Tung: Wrong.
Sheldon: Ow! Why'd you hit me?
Mei-Tung: Pain is the best teacher.
[present:]
Sheldon: I'm teaching you.
Dr. Linkletter: Well, it feels like you're hitting us.
Sheldon: Like you, I struggled with these concepts, but eventually, I mastered them, through hard work, resilience and a healthy dose of knuckle whacking.