Penny: My point is, as much as I want to live with you, I can't do it knowing how much Sheldon needs you.
Leonard: Please, the only thing he needs me for is to be his whipping boy, his, his stooge, his doormat.
Penny: Well, you know what they say, if it ain't broke...

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

Leonard: What am I supposed to do?
Penny: Err, keep your mouth off other women.

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

Howard: If you don't leave now, she'll use food and guilt to keep you there the rest of your life.

Howard: Honestly, if I could bend that far what would I need with you.
Bernadette: If you could bend that far, you'd be doing both of us a favor.

Mrs. Wolowitz Oh please. You're a tall glass of brown water. Have dessert.