Penny: Well, my beer isn't flat and my rack's not saggy, so far the future's great.

Amy: I think it might be fun to be someone else tonight.
Raj: Actually, you're all just going to be yourselves.
Amy: Oh, uck.

Raj: Hey, you guys just time travelled so stop looking so bored.

Amy: Should you really be sitting in Sheldon's spot?
Raj: He's in Texas, he'll never know.
Penny: Wouldn't be so sure about that.
Leonard: Yeah, he has a very sensitive butt. Look, it's true. Once I saw him sit on a bunch of loose change and add it up.

Penny: Ooh, I'm going to check the fridge and see if there are any clues inside a beer.

Penny: If you do something cool in science, you might change the world. If I become a famous actress ... I'm not going to tell you why movie stars are the best, they just are.