Doc: Each detonation will be accompanied by a sudden burst of acceleration. Hopefully, we'll hit 88 mph, before the needle gets much past 2000.
Marty McFly: Why, what happens when it hits 2000?
Doc: The whole boiler explodes.
Marty McFly: Perfect!

Undertaker: Excuse me, Mr. Eastwood. I just need your measurement.
Marty McFly: Hey. Look, buddy. I do'nt want to buy a suit.
Undertaker: No. This is for your coffin.
Marty McFly: My coffin?
Undertaker: Well, the odds are running 2 to 1 against you. Might as well be prepared.

Marty McFly: I had this horrible nightmare. Dreamed I w-... dreamed I was in a western. And I was being chased by all these Indians... and a bear.
Maggie McFly: Well... you're safe and sound here, now, at the McFly farm.
Marty McFly: McFly farm? Why, you're my, my, my... who are you?

Bartender: Emmett! What can I get you? The usual?
Doc: No, Chester, I'm gonna need something a lot stronger than that tonight.
Bartender: Sarsaparilla?
Doc: Whiskey, Chester.

Listen up, Eastwood! I intend to shoot somebody today and I'd prefer it to be you. But if you're just too damn yellow, I guess it'll just have to be a blacksmith.

Buford "Mad Dog" Tannen

Doc: And in the future, we don't need horses. We have motorized carriages called automobiles.
Saloon Old Timer #3: If everybody's got one of these auto-whatsits, does anybody walk or run anymore?
Doc: Of course we run. But for recreation. For fun.
Saloon Old Timer #3: Run for fun? What the hell kind of fun is that?

Doc: Marty, you're going to have to do something about those clothes. You walk around town dressed like that, you're liable to get shot.
Marty McFly: Or hanged.
Doc: What idiot dressed you in that outfit?
Marty McFly: You did.

Marty McFly: How many did he have?
Bartender: Just one.
Marty McFly: Just the one?
Bartender: There's a fella who can't hold his liquor.

So you're my great-grandfather. The first McFly born in America. And you peed on me.

Marty McFly

Buford "Mad Dog" Tannen: Smile, Sheriff. After all, this is a party!
Marshall Strickland: The only party I'll be smilin' at is the one that sees you at the end of a rope.
Strickland's Deputy: Have fun.
Marshall Strickland: [turns to his son] See, that's how you handle them, son. Never give 'em an inch, and maintain discipline at all times. Remember that word - "discipline."
Marshal Strickland's son: I will, Pa.

Marty McFly: Maybe it was a mistake, Doc. Maybe that grave wasn't yours. There could've been another Emmett Brown back in 1885.
Young Doc: No.
Marty McFly: Didn't you have any relatives here back then?
Young Doc: The Browns didn't come to Hill Valley until 1908, and then they were the Von Brauns. My father changed our name during the First World War.

Doc: Look! If your horse threw a shoe, bring him back and I'll reshoe him!
Buford "Mad Dog" Tannen: I done SHOT that horse!
Doc: Well, that's your problem, Tannen!
Buford "Mad Dog" Tannen: Wrong! That's YOURS. So, from now on, you better be lookin' behind you when you walk. 'Cause one day you're gonna get a bullet in your back.

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