Raj: Oh, Howard, uh, this is Andrea. She's the director of the planetarium.
Andrea: Hi.
Howard: Nice to meet you. I'm Howard Wolowitz. Engineer, husband, father, astronaut.
Andrea: Really? You're an astronaut?
Howard: Well, I don't like to brag.
Raj: Hmm, yeah, but somehow, you manage.

Andrea: Raj, you should have Howard join you for one of your shows.
Howard: Oh, that might be fun.
Raj: It might be, but with two small children at home and a full-time job, I'm sure you're too busy.
Howard: No, I could find the time.
Raj: Well, you don't have to decide right now.
Howard: It's okay, I-
Raj: He can't do it.

Sheldon: Hey, hurry up, guys. The gift shop's closing, and Amy said I can get one big thing or two little things.

Amy: So I'm gonna place the sensory isolation helmet on you for about five minutes. All you need to do is sit still and relax.
Colin: What do I do if I start to get claustrophobic?
Amy: Oh, the helmet will sense that and stop the experiment.
Colin: Really?
Amy: No, but that would be cool, wouldn't it?

Sheldon: Amy, are you busy?
Amy: I've got a subject wired up for a sensory study.
Sheldon: So...?
Amy: Yes, I'm busy.

Amy: I'm tracking a subject's brain activity in real time as we introduce olfactory stimuli.
Colin: I'm smelling baby powder.
Amy: That's just my husband.

Amy: Well, I want to see it, but not when I'm in the middle of an experiment.
Colin: Still baby powder!
Sheldon: Boy, he is annoying. Do any of those buttons shock him?

Amy: Look, I'm really excited about our paper, too, but I've got a lot of my own work to catch up on, so let's talk later.
Sheldon: Okay, I'll just say one more thing: lambda calculus. And if that wets your whistle, you know where to find me. Boop.

Howard: He sort of hurt my feelings.
Bernadette: Biceps, hammer, abs. Still in it.
Howard: Why wouldn't he want me to be in his planetarium show?
Bernadette: And it's gone.

Howard: Sorry, it's just the director of the planetarium thought it'd be fun for me to join Raj for one of his shows, and he made it clear that he didn't want me to.
Bernadette: Of course he wouldn't want you to. I mean, think about it. If you were him, would you want to share the stage with a sexy-ass astronaut?
Howard: I don't know. How sexy are we talking?
Bernadette: Oh, you know, tight pants, huge biceps, magic hammer.
Howard: Wait, who are we talk-
Bernadette: Shh, I'm back in it.

Sheldon: The fundamental problem with elementary quantum mechanical formalism is that the Fourier transform extends to minus infinity in time.
Penny: Hey, don't dumb this down for me.

Leonard: Oh, Sheldon. Didn't see you there. What's up?
Penny: Well, uh, he was excited to talk science with Amy, but she was working late, so he decided to come over and share it with me. With me, Leonard. With me.

Leonard: Sheldon, we've talked about this. You can't go around boring other people's wives.
Penny: Yeah. I already got a man for that.
Leonard: Yeah, you do.

Sheldon: It's just, I've just been enjoying my collaboration with Amy, but ever since we got back from our honeymoon, she has so little time.
Leonard: Well, she does have her own job.
Sheldon: Yeah, but it's so dull. Trying to understand how the brain translates the five senses into biochemical information. I'd rather wait in line without my phone.

Penny: Okay, well, Leonard's here now. You can talk science with him.
Leonard: Where you going?
Penny: Oh, that thing you were late for. One of us should really be there.