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.
[at the town festival]
Buford "Mad Dog" Tannen: Then let's finish it, right now!
Buford's Gang Member #1: Uh, not now, Buford. Uh, Marshal's got our guns.
Buford "Mad Dog" Tannen: Like I said, we'll finish this tomorrow.
Buford's Gang Member #2: Tomorrow, we're robbin' the Pine City Stage.
Buford "Mad Dog" Tannen: What about Monday? Are we doin' anything Monday?
Buford's Gang Member #1: Uh, no, Monday'd be fine. You can kill him on Monday.
Buford "Mad Dog" Tannen: I'll be back this way on Monday! We'll settle this then... right there... out in the street... in front of the Palace Saloon!
Marty
McFly: Yeah, right. When? High noon?
Buford "Mad Dog" Tannen: Noon? I do my killin' before breakfast! Seven o'clock!
Marty McFly: Eight o'clock. I do my killin' after breakfast!
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 and Marty load the DeLorean onto the train tracks]
Doc: Marty, I've made a decision. I'm not going with you tomorrow. I'm staying here.
Marty McFly: What are you talkin' about, Doc?
Doc: There's no point in denying it. I'm in love with Clara.
Marty McFly: Oh, man. Doc, we don't belong here! Neither
one of us! You know, it could still be you that gets shot tomorrow!
[shows Doc the photo of the blank tombstone]
Marty McFly: This tombstone could still be in your future!
Doc: Marty, the future isn't written. It can be changed. You know that. Anyone can make their future whatever they want it to be. I can't let this one little photograph
determine my entire destiny. I have to live my life according to what I believe is right in my heart.
Marty McFly: Doc, you're a scientist.
[points to Doc's heart]
Marty McFly: So you tell me: What's the right thing to do?
Marty McFly: [points to his own forehead] Up here?
Doc: [sighs and looks
again at the photograph] You're right, Marty.
[they release the DeLorean onto the tracks]
Marty McFly: Wow, that worked great.
Doc: I've at least gotta tell her goodbye.
Marty McFly: C'mon, Doc. I mean, think about it. What are you gonna say to her? "I gotta go back to the future"? I mean, she's not gonna understand
that, Doc. Hell, I'm in it with you and even I don't understand it.
[pause]
Marty McFly: Doc. Listen, maybe we could - I don't know. Maybe we could just take Clara with us.
Doc: To the future?
[shakes his head]
Doc: As you reminded me, Marty, I'm a scientist, so I must be scientific about this. I cautioned you
about disrupting the continuum for your own personal benefit. Therefore, I must do no less. We shall proceed as planned, and as soon as we return to 1985, we'll destroy this infernal machine. Traveling through time has become much too painful.
Buford "Mad Dog" Tannen: You owe me money, blacksmith.
Doc: How do ya figure?
Buford "Mad Dog" Tannen: My horse threw a shoe. And seein' as you was the one that done the shoein', I say that makes you responsible.
Doc: Well, since you never paid me for the job, I say that makes us even!
Buford
"Mad Dog" Tannen: Wrong! See I was *on* my horse when it threw the shoe and I got throwed *off*! And *that* caused me to bust a perfectly good bottle of fine Kentucky red-eye. So, the way I figure it, blacksmith, you owe me five dollars for the whiskey and $75 for the horse.
Marty McFly: [hoarsely] That's the $80.
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.
[Buford and his
gang gallop away on their horses]
Doc: Clara was one in a million. One in a billion. One in a googolplex!
Marty McFly: Listen, you got a back door to this place?
Bartender: Yeah, it's in the back.
Doc: Marty, why are you wearing that gun? You're not considering going up against Tannen tomorrow?
Marty McFly: Doc, tomorrow morning, I'm going back to the future with you. But if Buford Tannen comes looking for trouble, I'm gonna be ready for him. You heard what that son of a bitch called me last night.
Doc: Marty, you can't go
losing your judgment every time someone calls you a name. That's exactly what causes you to get into that accident in the future.
Marty McFly: What? What about my future?
Doc: I can't tell you. It might make things worse.
Marty McFly: Wait a minute, Doc. What is wrong with my future?
Doc: Marty, we all
have to make decisions that affect the course of our lives. You've gotta do what you've gotta do. And I've gotta do what I've gotta do.
[Marty and Doc meet for the first time in 1885, just as Doc has saved Marty from being hung to death]
Marty McFly: [weakly] Doc?
Doc: [boldly] Marty? I gave you explicit instructions not to come here, but to go directly back to 1985.
Marty McFly: [weakly] I know, Doc. But I had to come.
Doc: Well, it's
good to see you, Marty.
[the two hug and then walk off and Doc adds]
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: [gesturing a rope around his neck, weakly] Or hanged.
Doc: What idiot dressed you in that outfit?
Marty McFly: [smiles weakly] You did.