Young Nicky: No one tough wears glasses.
Young Jack: What about Superman?
Young Nicky: Superman doesn't wear glasses.
Young Jack: He does when he's Clark Kent.
Young Nicky: Not when he's Superman.
Young Jack: He's a tough guy in disguise. That's you, Nicky. You're Clark Kent. You're CK, tough guy in disguise. Just a matter of time before people realize you're actually Superman.