Sheldon: You know it's still your birthday.
Amy: (chuckles) It is.
Sheldon: And we are both feeling better.
Amy: We are. And there's no one in that bounce house.
Sheldon: Great. Let's go jump for a bit, and then find a bedroom to have coitus in.

Sheldon: Speaking of something I find interesting, did anyone read that article about Bitcoin I sent you?
Howard: Yeah, I can't believe a single Bitcoin is worth about $5,000 now.
Leonard: Wait, didn't we mine some a few years ago?
Sheldon: It was seven years ago.
Howard: Oh, yeah, I remember that.
Raj: Really? All I can remember from seven years ago is I couldn't get Kesha's "Tik Tok" out of my head.
"Tik Tok, on the clock" Whoa, welcome home, Kesha.

Amy: I'm really impressed at how you handled that, Howard.
Howard: Please. I've been sending food back my entire life. One of my first full sentences was, "I had breast milk for breakfast!"

Leonard: Really? Is this still happening?
Howard: I'm willing to make up, but someone's being a baby.
Sheldon: Ooh! I do love a riddle. Oh, let me see. See, my first guess would be Halley, but that'd be strange to accuse her of being a baby 'cause she is a baby. Um, I suppose it could be Stuart; his head does have a certain milky scent.

Sheldon: Oh, Stuart, two questions: Do you have the new Aquaman, and do you mind if I use your back room to smoke some meat?
Stuart: Well, since it's you asking, I'm gonna guess that's not a euphemism.
Howard: Why are you smoking meat?
Leonard: And why are you reading Aquaman?
Sheldon: I am trying to make Amy a historically accurate Little House on the Prairie dinner for her birthday, and I want to be able to say I was reading it before it was cool.
Howard: Wow, well, that's actually really sweet.
Leonard: The dinner thing. The Aquaman thing's dumb.

Leonard: Well, we've been married two years. Should we think about what's next? Like buying a house or having a baby?
Penny: Look, I want to do all those things someday, but there's a bunch of stuff I want to do first.
Leonard: Okay, like what?
Penny: I don't know, stay thin and have money.

Amy: Sheldon, they're not gonna give you half a billion dollars. I mean, they won't even give me that much and I keep promising I can make people's brains "grow younger".
Penny: Can you?
Amy: (whispering) No. Shh.

Raj: Oh, my God, this tomato is amazing! I can eat it like an apple.
Doctor Wolcott: My secret is I fertilize it with my own manure.
Howard: The look on your face.
Leonard: It's a sort of grin. You want to know what kind?

Leonard: If it's not tangible, how do you know it's not just gonna vanish tomorrow?
Howard: Really? You're dating Penny, and you're gonna poke at something that could vanish tomorrow?

Penny: This is just to give you ideas. You know, do-do you want something simple and elegant? I mean, do you want a train?
Sheldon: [entering the apartment] Ooh, we're talking about trains.
Amy: Not the kind of trains you like.
Sheldon: Oh, I like all kinds of trains: steam, diesel, coal, elevated, bullet. I defy you to name a train that I don't like.
Penny: The kind on the back of a wedding dress?
Sheldon: I did not see that coming. Good job.

Raj: Hey, Stuart. You want to mine some Bitcoin with us? We'll write the program, you bring the snacks?
Stuart: Too rich for my blood.

Leonard: Oh, yeah. We did it without you.
Sheldon: And do you remember what happened next?
Howard: Your mom called my mom and said we were being mean?
Sheldon: And after that?
Howard: You said that someday we'd regret this.
Sheldon: And do you know what today is?
Leonard: The day we found out we're rich and none of it is yours? (Leonard, Howard and Raj high-five)

Stuart: How you two feeling?
Sheldon: Oh, a little better. Those books should have been called Little Outhouse on the Prairie.

Penny: What was that?
Amy: I need to prove to my mother that I'm on a date. If she thinks I faked the picture, I might need you as a witness. What's your name?
Penny: Bernadette.

Leonard: You know what, if you need a computer, you can use my laptop.
Penny: Oh, that's sweet, but I'm not gonna take your computer.
Leonard: Oh, it's fine. I-I'm getting a new one anyway.
Penny: Are you sure?
Sheldon: Don't be silly. He's desperate to hold on to you. You can get anything out of him. His car, his watch-
Howard: Maybe a kidney. You already have his testicles. You can start a collection.