Adult Sheldon: As long as I can remember, unlocking the mechanisms that govern the physical universe was my greatest passion.
Mary: Whatcha workin' on?
Sheldon: Dungeons & Dragons.
Adult Sheldon: Hey, even Hawking took a roll through the park once in a while.
Sheldon: I'm working on a new campaign to play with Tam and Billy.
Mary: You know how I feel about that game.
Sheldon: I'm aware, which is why the most wicked thing in it is my sense of humor. [doorbell rings]
Mary: [sighs] I still don't like it. But you are playing with other kids, so I'll take it as a win.
Adult Sheldon: Not just playing with other kids, controlling every aspect of their destiny as their Dungeon Master overlord. I didn't believe in God but I sure loved acting like one.

Mary: Let's say grace.
Sheldon: Hang on, safety first. [puts mittens on]
George Jr.: When are you gonna get over that?
Sheldon: I would think recent events would make you value protection.
Mary: Enough.

Ms. MacElroy: Now, can anyone tell me why Melville shifts the narrative voice from Ishmael to Ahab? [Ms. MacElroy waits for somebody else to raise their hand] Sheldon.
Sheldon: I have a tummyache. I'd like to see the nurse.
Derek: A "tummyache"?
Sheldon: Yes, Derek, I have a tummy and it aches. Ergo, tummyache.
Derek: Ergo?
Sheldon: It's Latin, Derek.
Ms. MacElroy: Go to the nurse.
Sheldon: And to answer your question, the shifting point of view grants the reader a broader perspective of events than typically allowed by first-person narration.
Ms. MacElroy: Where were we?
Sheldon: And "ergo" is Latin for "hence," Derek.

Missy: What's it like to not believe in God?
Sheldon: It's great. Big fan.
Missy: Are you ever afraid you're wrong?
Sheldon: About religion? Never. About other things? Also never.

George Jr.: Just out of curiosity, when exactly are you and Mom leaving, and when exactly are y'all coming back?
George Sr.: You're not bringing your girlfriend here.
George Jr.: Excuse me for taking an interest in your life.
George Sr.: Besides, your grandma'll be here the whole time.
George Jr.: Never mind. Wait. So her house'll be empty?
George Sr.: Look, I used to be your age, but can you try thinking with your brain for once?
George Jr.: If you used to be my age, I think you know the answer to that.

Mary: So you've stayed at this hotel before?
George Sr.: Oh, yeah. It's nice. They got an indoor pool and a killer breakfast buffet. There's even a real nice gym we'll walk right past on the way to the breakfast buffet.

Darlene: Ooh, this camper is so cool.
Mary: We borrowed it from my mom's boyfriend.
George Sr.: Yeah, you might not want to poke around too much. You find my mother-in-law's bra, I'm driving into a brick wall.