Sheldon: I've been modeling different types of dark matter and the traces they would leave on the zircon inside your meteorite.
Bert: What's this one here?
Sheldon: That's actually a dark matter model of my own creation. I call it the Cooper Boson.
Bert: Cool. I got to name a rock once. I named it Moderately Sedimented Shale. Guess I kind of pooped the bed on that one.

Bert: I met her on G-Harmony. That's a Web site for geologists to find love.
Amy: That's a real thing?
Bert: Yeah. Their slogan is "We're all about dating and not the carbon-14 kind".

Bert: You know what, uh, geologists and Bon Jovi have in common?
Howard: You're both into rock?
Bert: Yeah.

Bert: I don't really have dreams, when I sleep or in life.

Sheldon: They're very different. Physics answers the question: what is the nature of the universe? Geology answers the question: you know, what'd I just trip over?

Amy: What's going on?
Sheldon: What if there was something I wanted to do, but I was worried other people would think less of me?
Amy: Is that other person me, and does it happen in the bedroom, in which case I think I'm cool with it?
Sheldon: No. It's about working with Bert on - You know what? I'm not even gonna say it. I am just gonna say the letter it starts with and -"ology". G-- Oh, no, that's not gonna work.

Penny: Okay, this is about science. Why'd you come to me?
Sheldon: Well, because it's also about my reputation. And somehow you manage to hold your head high despite your checkered past.
Penny: Checkered past?
Sheldon: It's a figure of speech referring to how sexually promiscuous you were.
Penny: Really? Well, I've got a figure of speech about how sexually promiscuous you can go be with yourself.