Leonard: That was Wil. He's feeling a lot better. Apparently he's twelve down in the TV Guide crossword puzzle.

Leonard: What would you be if you were attached to another object by an inclined plane, wrapped helically around an axis?
Sheldon: Screwed?
Leonard: There you go.

Leonard: My point is, while you're spending all this time on your own, building computers or practicing your cello, what you're really doing is becoming interesting. When people finally do notice you, they're gonna find someone a lot cooler than they thought. And for those of you that were popular in high school, it's over, sorry. Thank you. Congratulations.

Leonard: [to a "smiling" Sheldon] We're here to see Koothrappali, not kill Batman.

Bernadette: I like the Wii.
Sheldon: Thanks, Grandma.

Sheldon: Oh look, a quarter!

Penny: Next time I get a speeding ticket, here come the waterworks.
Sheldon: Here come the waterworks!
*Sheldon runs off to the bathroom*
Leonard: Aren't you going to ask?
Penny: What is this, my first day?