Sheldon: I'm sorry. It's, I'm trying to show you that I can change. I don't want you to miss out on things because of me.
Amy: I know you don't.
Sheldon: You know, and maybe somewhere out there, there is a little girl who will see you on Wil's show and realize that she, too, can grow up to be a brilliant, amazing, successful scientist.
Amy: Thank you.
Sheldon: Who is really terrible at chess.
Amy: Got it.
Sheldon: No, no, no. I mean really bad. What was your queen doing over there, going shopping?