Sheldon: You know I can't keep a secret!
Leonard: You can if you try. Think about it this way: if I were Batman and you were Alfred, you'd keep that secret, right?
Sheldon: Why do you get to be Batman?
Leonard: Because the Batman has the secret.
Sheldon: Alfred has secrets, too!
Leonard: Like what?
Sheldon: Alfred knows that Barbara Gordon is Batgirl. Which I've now just told to Batman! See, I cannot keep a secret!

  »   More Quotes from The Big Bang Theory
  »   Back to the TV Quotes Database