Sheldon: Would you look at that? The image we gave it was 45% white noise, and it still managed to reconstruct it.
Amy: I've never seen results like this before.
Sheldon: Yeah, we need to stop for magnets on the way home; this is going right on the fridge.

Amy: Make a baby? What are you talking about?
Sheldon: Clearly the combination of our DNA is exceptional. Our child could be the next step in the evolution of mankind. We we'll be able to get into any preschool we want!

Sheldon: Hey, where are you going? Did you even look at my bottom?

Raj: We're in the telescope room! It'll be like dining under the stars. You see this, uh, double zero? When it says "01" that means it's twinkling. ... Sometimes it takes a while.

Raj: I tried to cook you a meal from your homeland.
Issabella: Oh, really? You made Cuban food?
Raj: That depends. Do they have Mexican food in Cuba?

Penny: Now, when he said "make a baby" is it possible he meant out of Legos?
Amy: No. He was explicit. Needlessly and freakishly explicit.

Leonard: Why does he need a baby? He's already hairless and smells like talcum powder.

Penny: Could you two really have some sort of super-intelligent child?
Amy: Well, there is a genetic component, but that doesn't guarantee anything.
Leonard: That's true. Sheldon's father once picked a fight with a cactus.
Penny: Yeah, but that's just his Earth parents. We don't know anything about the ones that sent him here.
Leonard: Well, we know they were smart enough to send him away.

Amy: Hey, you're talking about the person I love and have been avoiding for the past three hours.

(Amy, Leonard and Penny reach the fourth floor and discover Sheldon has laid out rose petals leading to the door of Apartment 4B)
Amy: Aww, man!
Penny: Ooh! Sheldon gonna get some.
Leonard: Well, have fun with whatever nightmare's behind door number two.

Amy: Sheldon, please stop trying to seduce me.
Sheldon: Who's trying to seduce you? After a long day I always turn on smooth jazz and spray deer musk on my inner thighs.
Amy: I thought it smelled like a petting zoo in here.
Sheldon: Anything you'd like to pet? Bu-, but not my hair. There's a lot of goop in it.

Raj: So, um, what surprised you the most when you first came to America?
Issabella: Well, I suppose how much people care about Oprah's favorite things.
Raj: I thought that, too. But then I got my first waffle maker and never questioned her again.

Raj: Issabella! Issabella, wait, wait, let me explain.
Issabella: If you are embarrassed by what I do, why did you pursue me?
Raj: I'm sorry. Honestly, I didn't think your job would bother me, but I guess it did. And I hate myself for that. But there's a lot of things about me that would totally embarrass you.
Issabella: I doubt that.
Raj: Well, prepare to be mortified. I let my dog eat food out of my mouth, not because she likes it but because I do. Also, I know they're pretty, but I'm scared of butterflies.

Raj: What do you say? Let me make it up to you.
Issabella: You're very persistent.
Raj: It's my one move.

Issabella: This Sunday night, you may take me to dinner at a nice restaurant.
Raj: Great. Where would you like to go?
Issabella: Your choice. It can be Pakistani food, if you like.
Raj: Excuse me, but I'm Indian.
Issabella: And now you know how it feels.