Penny: (On the phone) Anyway, I'm really sorry I made fun of your stutter in high school.
Bernadette: You're doing great.
Penny: Uh-huh. Uh-huh. Oh, God, just finish the sentence. Okay, well, I'm sorry you feel that way. Bye. No one wants to hear my apologies.
Amy: I think your mistake is doing it over the phone. If they could look into your eyes, they'd melt.
Bernadette: Penny, it doesn't matter what you did in the past. You're a good person now.
Penny: That's easy for you to say. You weren't just called a b-b-b-b-bitch.

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

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?

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

Leonard: Do you think we can outrun him?
Sheldon: I don't need to outrun him, I just need to outrun you.

Penny: Did Sheldon change the Wi-Fi password again?
Leonard: Yeah, it's "Penny already eats our food she can pay for Wi-Fi". No spaces.

Sheldon: I'm not going to say I told you so, but we could have killed him.