Sheldon: Ooh, the long-awaited rebuttal. "While I still believe my theory has merit, I will concede that your point has some validity." My point has some validity. My point has some validity! Yes!
Adult Sheldon: That day, both my sister and I emerged victorious from savage battles. Hers fought with fists, mine with words.
Sheldon: What does my point have? Some validity!
Adult Sheldon: Although we were both pretty sore the next day.

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.

Pastor Jeff: Before our final prayer, would anyone else like to say a few words?
Mary: Missy? [Missy shakes her head] Shelly?
[Sheldon stands up and walks up to the microphone]
Sheldon: I've been thinking a lot about the last moments I had with my dad. It was morning, and he was leaving for work. He said, "See y'all later." And I said nothing. I regret that. I could have said "bye" or asked him for a ride. Or told him that I loved him. But I didn't. I barely noticed he left. So many times that I didn't notice my father. I hope he knew how much I loved him.
Adult Sheldon: I wish I could tell you I said all those things. But I didn't.
Mary: Shelly? [Sheldon shakes his head] [Mary shakes her head to Pastor Jeff]
Pastor Jeff: Let's bow our heads in prayer.
All: Our Father, who is in heaven, hallowed be Your name...
Adult Sheldon: For a long time, I focused on my father's shortcomings. Now that I'm his age and have kids of my own, I realize he was just a person doing the best he could, and he did a lot. I didn't say it at his funeral, but I can say it now. I loved my father. I will miss him forever.

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.