Leonard: Oh, I forgot about this (sweater). My aunt made it for me when I finished college.
Penny: Aww, did she hate you?
Leonard: Why because I got an ugly, itchy sweater and my brother got a car? No, I was her favorite!

Leonard: I'll show you what's in the box if you promise not to flip out.
Sheldon: Why would I flip out? Is it a spider? Oh, oh, it's a spider?
Penny: No, if it were a spider, Lenny would have flipped out.

Leonard: Sheldon's being reasonable.
Penny: Yeah, it's freaking me out. I'm gonna go.

Leonard: So when you say you're not going to flip out about the DVD, here's what that means. Don't fixate on it, or wake me up in the middle of the night, or nag me through the door while I'm on the toilet.

Sheldon: First, talking to you while you're on the toilet isn't exactly a picnic for me either. Remember, when you can hear me, I can hear you.

Sheldon: How are those nipples feeling, chief?

Amy: Oh my gosh, that's the girl that broke Rajesh's heart.
Bernadette: That's Lucy?
Penny: I don't know why but I always pictured her as Indian.
Bernadette: I think that reason's called racism.

Penny: I just wanna check her out because she hurt my friend. My Indian friend. Who's racist now?
Bernadette: You! Because you just called him your Indian friend.
Penny: Yeah, well ... you're short.

Penny: See, just now you expressed your feelings to my face. How come you could do that with me but not with Raj?
Lucy: I don't know your email.

Howard: So you can never take it (the sweater) off?
Leonard: No.
Raj: Not even to sleep?
Leonard: No.
Howard: So you're just an idiot?
Leonard: It's called proving a point.
Howard: Is the point you're an idiot?

Sheldon: Gentlemen, please. Leonard is trying to walk a mile in my metaphorical shoes. He can't walk in my actual shoes, he has the feet of a toddler.

Howard: The man impersonating a bear would like you to know that, "Only you can prevent forest fires."
Raj: I don't get it.
Howard: You didn't have Smokey the Bear in India?
Raj: No. Was he anything like Munmun the Mongoose? He taught us not to play with cobras.
Howard: You had to be taught not to play with cobras?
Raj: You had to be taught not to burn down the forest?

Penny: If you guys were hungry, why didn't you order something at the restaurant?
Bernadette: We did. You never brought it.
Penny: Oh, that's right. Nachos and a turkey club.
Amy: Not even close.
Penny: Well, I was too busy standing up for my friend to worry about your ... I want to say salmon.
Amy: You want to say sorry.

Raj: What is wrong with you, Penny? You ruined any chance I had of getting back with Lucy. Now she knows I'm a desperate mess instead of being pretty sure.
Raj: *Checks his phone* It's Lucy. She wants to meet for coffee. I LOVE YOU PENNY!

Sheldon: It's great you're here. I'd love to get an engineer's opinion.
Howard: Sure.
Sheldon: This chair is squeaky. Now, do I fix it or get a new one?