George McFly: You really think I ought to swear?Marty McFly: Yes, definitely. Goddamn it, George, swear.
No wonder your president has to be an actor. He's gotta look good on television.
George McFly: Lorraine. My density has brought me to you.Lorraine Baines: What?George McFly: Oh. What I meant to say was...Lorraine Baines: Wait a minute. Don't I know you from somewhere?George McFly: Yes. Yes. I'm George. George McFly. I'm your density. I mean, your destiny.
Marty McFly: Damn it, Doc! Why did you have to tear up that letter? If I only had more time.Marty McFly: Wait a minute. I got all the time I want. I got a time machine! I can just go back early and warn him.