Adult Sheldon: Thanks to Dr. Sturgis, I had all the intellectual ammunition I needed to bring my opponent to his knees. I accused him of conflating two different interpretations of quantum theory, woefully misrepresenting Paul Dirac, and when I called him a dung beetle in Latin, I was so riled up, I almost started producing testosterone.

Adult Sheldon: I didn't realize until years later that my father was only asking questions about lightning and thunder to cheer me up. In fact, he would often pretend to be dumb just to make me feel better.

Adult Sheldon: My father didn't always get the credit he deserved. The advice he gave me actually worked out pretty well. Of course, I never told him.
George: Talked to Billy.
Missy: Why would you do that?
George: No, it was good.
Missy: Stay out of my life.
Adult Sheldon: He may not have been the world's greatest dad. But maybe we weren't the world's greatest kids.

Adult Sheldon: Ignoring things that irritate me isn't my strong suit. Obsessively fixating on them, now that's what gets me out of bed in the morning.

Dr. John Sturgis: [on the phone] So how can I help?
Sheldon: I posted a theory on the collapse of wave function. We've been arguing back and forth and he's saying that my probabilities come out negative.
Dr. John Sturgis: Hmm. I see. Have you considered that negative probabilities can still have meaning?
Sheldon: Ooh, I hadn't. That suggests another idea. I can argue that negative probabilities only show up in intermediate steps. I'm gonna destroy him with this.
Dr. John Sturgis: And when you do, feel free to call him a Scarabaeus viettei, a dung beetle.
Sheldon: Oh, I so admire your mind.
Dr. John Sturgis: Back at you, little man.

George: So how'd you wind up coaching baseball?
Dale: Well, with the sporting goods store, you know, I've sponsored a couple of teams, and then this year, my grandson wanted to play, so it lets me spend more time with him.
George: That's nice. Yeah, I coach my son in football.
Dale: Sheldon?
George: Oh, God, no. Can you imagine?
Dale: You really scared me there for a second.

George: Oh, yeah. Connie's great. You can have a beer with her, watch a football game, joke around. She doesn't mind if you swear. In fact, that woman's got a mouth on her.
Dale: I have noticed that.
George: Yeah. You know, I just realized something. I got more in common with my mother-in-law than I do my own wife.
Dale: That's kind of creepy.
George: Yeah. Let's hope the beer does its job and I don't remember this tomorrow.