Amy: Wait, are you saying if we combine my experiment with your calculations, we can determine the precise moment in time when the wave function collapses?
Sheldon: It could be the most inspired combination since I mixed red Icee into my blue Icee. It was like drinking 2/7ths of the rainbow.
Amy: Sheldon, this is really interesting.
Sheldon: Yeah and this one won't stain my teeth purple.

Amy: Why don't you ask me what I'm working on?
Sheldon: Oh, very well. What have you been working on? And feel free to honk during the boring parts.

Leonard: Oh, it's just nice to be with people who are happy to have me around. Isn't that right, Halley?
*Halley starts crying*
Howard: Well, at least someone had the courage to say it.

Raj: It's nice to see you taking an interest in Amy's work.
Sheldon: Well, don't get me wrong. Neurobiology's nothing more than the science of gray squishy stuff. But, you know, when it connects to physics, gas up the Ford, Martha, we're going for a drive.

Bernadette: Look, Raj just gets along with women.
Leonard: I know, but he was my friend first. It's like she's stealing him and they're just having the best time doing all their dumb girly stuff together.
Howard: You sure you don't fit in? You sound like a catty bitch to me.

Sheldon: Things have been going really well with the infinite resistance gyroscope.
Amy: That's great. How so?
Sheldon: Oh, the project is classified. I can't tell you. Oh, I suppose I could redact the classified parts. All right, um, I came up with an elegant solution to the (honks horn). I used the (honks horn) And then I (honks horn) And that did it. (honks horn)

Raj: You know, downward-facing dog comes from the Sanskrit phrase adho mukha shvanasana.
Penny: Oh, that's beautiful. What does it mean?
Raj: "Downward-facing dog."
Penny: Yeah, I guess they don't have Sanskrit for "butts up and heads down."
Raj: Hey, we wrote the Kama Sutra. If it involves butts, there's a word for it.

Leonard: I thought we were getting breakfast before work.
Penny: Oh, right, sorry.
Raj: It's my fault. I asked Penny to do yoga with me.
Penny: If you want, I can get ready in five minutes.
Leonard: (chuckles) It's cute that you think that.

Raj: Hey, can I ask you a favor? Would you mind taking Cinnamon for a walk?
Leonard: Sure. You're living here for free. I guess I owe you.

Sheldon: Yeah, I picked it up without thinking about it. Which raises a neuro-scientific question, when did I decide to pick it up?
Raj: The bigger question is, what are you gonna eat with that spoon? You didn't get any food.

Amy: You know, we've never collaborated professionally before. Are you worried it might affect our relationship?
Sheldon: That is a valid point. Perhaps we should establish some ground rules.
Amy: Well, that would make me feel better.
Sheldon: All right, let's start right now. Uh, rule number one, no using sexuality to get your way.
Amy: That's a ridiculous rule.
Sheldon: Is it? (Sheldon flaunts his posterior as he walks away)

Penny: Okay, how is that?
Raj: I can actually feel the toxins being pulled out of my skin.
Penny: Well, this is a moisturizing mask.
Raj: Oh, well, then I can actually feel the moisture going into my skin.

Sheldon: Number two: when we publish, my name goes first. Oh, subsequently, if we win any awards, I speak first. I don't want to be talking when the orchestra plays us off.

Leonard: I mean, they didn't say anything, but I just kind of felt like I was being a weird third wheel.
Howard: Huh, so you can tell what that feels like. Interesting.

Amy: So, shall we get to work?
Sheldon: Biology and physics coming together. This is like the peanut butter cup of the mind. Ooh, I know what I want my treat to be.