Amy: Look at that.
Sheldon: Yes, this is remarkable.
Amy: So we're agreed: it's complete garbage.
Sheldon: By the way, your name can go first.

Howard: Nice. 174 diapers. That ought to get us to Wednesday.

Bernadette: Well, have you talked to them about it?
Leonard: Well, what am I supposed to say-- "Stop having fun without me"?
Howard: This one says that every time I go out. See? I listen to you.

Sheldon: All right, either blow your nose or teach it to play "Camptown Races."

Sheldon: Yeah, boy, if good ideas came out of your brain the way mucus comes out of your nose, we'd be in good shape.

Leonard: I'm sure I'm overreacting.
Bernadette: You're entitled to feel how you feel. If you don't like it, you should just talk to her.
Leonard: I don't want to sound like a jealous baby.
Bernadette: Oh, then maybe you shouldn't talk to her.

Amy: We're finally making progress. I wish we could do it without fighting.
Sheldon: What if the fighting is the reason we're making progress?
Amy: I suppose it's conceivable that the hormones associated with our fight-or-flight response could be sharpening our cognitive processes.
Sheldon: Well, if that's the case, then your grandparents mumble and have bad posture.

Sheldon: It seems we have a choice to make. Abandon all ground rules in the name of science, or give up collaborating for the sake of our relationship.
Amy: There's only one clear choice.
Sheldon: Science it is.
Amy: No, you bonehead!
Sheldon: Name-calling, that is perfect. Now, when I get to this equation here, really let me have it. You know? If it helps, I'm not the sharpest dresser.

Amy: You know, I had a feeling you were using the wrong computational model, but I didn't say anything 'cause you're so sensitive.
Sheldon: Just because I'm easily bothered by light, heat, smell, sound, and the way birds look at me does not mean I'm sensitive.

Leonard: Anyway, I figured I can hang out with my friends and have fun too.
Bernadette: Well if your idea of fun is riding in a minivan to Target for diapers, things are about to get nuts.

Sheldon: Amy is studying the time lag between intent and awareness, and I realized that applies to the measurement problem in quantum mechanics. Now, I recognize there will be a time lag between me saying that and you Googling what it means, so I'll wait.
Leonard: I understand it, Sheldon.
Raj: Yeah, me, too.
Howard: I'm sorry, I spaced. Are we still talking about the spoon?