Amy: Look at what you've done to me!
Penny: Ah, hey. Could you just, like, not touch my computer or like, anything else. I just, ugh, I don't want to look like that in your wedding photos.

Penny: At one point, they had me figure out how to get a banana out of a puzzle box.
Leonard: Wait, Sheldon gave me a banana in a box. He was testing me, too.
Penny: Unbelievable.
Leonard: And how could a chimp even solve that? That was impossible.
Penny: Really? You couldn't get it out?

Leonard: If I take it off, Sheldon wins.
Penny: Sweetie, every night you don't kill him in his sleep, he wins.

Sheldon: Woman, you are playing with forces beyond your ken.
Penny: Yeah, well your Ken can kiss my Barbie.

Georgie: You went away to college after Dad died. Who do you think took care of everything?
Sheldon: Mom did. Mom always took care of everything.
Georgie: Mom was a mess, Missy was a dumb teenager. I had to look after both of 'em.
Sheldon: I talked to Mom all the time. If she was upset, she would have told me.
Georgie: She was protecting you, you idiot, just like everyone always does.
Sheldon: If things were bad, then why didn't you tell me?
Georgie: Because I was protecting you, too. (sighs) You're my baby brother, Sheldon. I know life has been hard for you, but that don't mean it's been easy for the rest of us.

Sheldon: I would like you at my wedding.
Georgie: Thank you, Sheldon. That is so nice to hear. But I would rather swallow a pregnant wildcat and crap out a litter of kittens.

Georgie: Leonard, you know how I got the money to open up my first store? I busted my ass for it, 'cause all the extra money that we had had to go to Sheldon so he could go to college and he could go study in Germany. And do you know what he's never said to me?
Leonard: Danke schon? It's, uh, "thank you" in German.
Georgie: Do you need me to sit on your head?
Leonard: Nope.