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.

Raj: Recently, 12 new moons were discovered orbiting Jupiter, bringing the total up to 79.
As a middle child myself, I'd like to extend my sympathies to moons two through 78. Your grandpa will never learn your name. I'd like to thank you for joining me on this journey through the stars. If you enjoyed this lecture, please come back Thursday for the exact same one.

Howard: Do I look like I just woke up?
Leonard: No.
Howard: Great. I'm gonna go say hey to Raj.

Leonard: What were you guys giggling about?
Penny: They were passing notes to each other.
Leonard: Oh-ho, love notes?
Penny: If you love math.
Sheldon: And we do.
Amy: It's for our super-asymmetry theory.
Sheldon: Yeah, Amy and I have been having so much fun collaborating together.
Penny: Well, you know what they say, you never collaborate as much as your first year of marriage.

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.

Bernadette: Check it out, LeBron James posted a picture of me and him on Instagram.
Penny: I don't see you.
Bernadette: Look right behind him.
Penny: No.
Bernadette: Okay. You see that table just past his left shoulder? Now go back two more tables and over to the right.
Penny: All I see is a yellow smudge.
Bernadette: That's me!

Raj: What the hell did you two say to Anu?
Bernadette: Uh, whatever do you mean?
Raj: Why, why would you tell her I wear ladies' deodorant?
Penny: Uh, because you're a boy and it's really funny.
Raj: Oh, oh, okay. Pardon me for having the confidence to smell daisy-fresh.

Penny: Ugh, God, now I feel bad.
Bernadette: I know. Maybe we should take her out again and do some damage control.
Penny: You know, that's a good idea. Think she can get us into SoHo House?
Bernadette: I don't know, but we owe it to Raj to try.

Leonard: Sounds like Penny and Bernadette had fun last night.
Howard: I know. Bernie came home pretty drunk. She tried to sleep in the dryer.

Sheldon: Hello, you all remember Tam, my best friend from high school.
Howard: Yeah.
Leonard: Of course.
Raj: How's it going?
Tam: Sheldon's been showing me and my son around. Now we know where all the clean bathrooms are.