Meemaw: Wait, what's an "event horizon"?
Sheldon: It just means the edge.
Meemaw: Why not say "the edge"?
George Jr.: The guitar player for U is called the Edge.
George Sr.: What does that have to do with anything?
George Jr.: I'm participating in the conversation. You're just sitting there like a lump.
Meemaw: [snorts] "Lump."
Sheldon: Anyway, ordinarily, the particles would collide and destroy each other.
Dr. John Sturgis: But in this instance, they could exist simultaneously.
George Sr.: And what is the significance of that? [to Georgie] I can participate, smart-ass.
George Jr.: Good job, lump.

George Jr.: What are you doing?
George Sr.: Separating the whites from the colors.
George Jr.: Whoa, that's racist.

George Jr.: I think the saddest part about it is just how sad it is.

George Jr.: So, Vietnam, like in Rambo.
Tam: Yes.
George Jr.: That's a cool movie.
Tam: Yes.
George Jr.: Are you in it?
Tam: No.

Adult Sheldon: [v.o.] We often regret the things we don't say. There's a lot of things I wish I had said to my dad while he was around. That I appreciated him. That I loved him. Which is why I'm grateful for the times I did tell him how I felt.
Sheldon: Tonight was fun.
George Sr.: Yeah? Why is that?
Sheldon: Dr. Sturgis was here. Everybody talked about science. It was nice.
George Sr.: It was.

President Hagemeyer: Sheldon, Dr. Sturgis quit right before the semester started. He left me in the lurch.
Sheldon: And this is your chance to be the bigger person.
President Hagemeyer: I don't want to be the bigger person. I'll be the small, petty person. That's way more fun.
Sheldon: Please? It would make me really happy if he came back. And you said yourself my happiness is important to the university.
President Hagemeyer: Are you trying to manipulate me?
Sheldon: Hey, being small and petty is fun.

[fantasy:]
Dr. John Sturgis: [Southern accent] To us, it'd be as normal as boots on a cowboy.
George Jr.: That is wild.
Missy: Dr. Sturgis is correct. If indeed we grew up in another universe, our sense of normality would be formed by that universe.
George Sr.: That's enough. There are no other universes. The Bible tells us God created the Earth, not the Earths.
Mary: Ugh, why did I have to marry a preacher?
George Sr.: Because it was God's will to bless us with union.
Mary: I hope it's his plan that I hit the clubs tonight, 'cause that's gonna happen. [laughs]
Sheldon: Why am I the only normal one in this family?
Missy: If you're the only normal one, statistically speaking, you're abnormal.
George Jr.: [chuckles] Freak.