Doc quotes from Back to the Future Part III (1990)

Marty

DOC!! DOC!! Come here, quick!

What's wrong, Marty? You look like you've seen a ghost.

Marty

You're not far off, Doc.

Oh, Great Scott!

Marty

Check this out. "Died September 7th, 1885." That's one week after you wrote the letter! "Erected in memory by his beloved Clara." Who the hell is Clara?

Marty, please don't stand there!

Marty

Oh, right! [steps off grave plot] Sorry, I better get another picture.

"Shot in the back by Buford Tannen over a matter of $80." What kind of a future do you call that?!

Well, good luck. For both our sakes. See you in the future.

Marty

You mean the past.

Exactly!

You owe me money, blacksmith.

How do you figure?

My horse threw his shoe. And seein' as you was the one who done the shoein', I say that makes you responsible.

Well, since you never paid me for the job, I say that makes us even!

Wrong! See, I was on my horse when he threw the shoe and I got thrown 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 $5 for the whiskey and $75 for the horse.

Marty

That's the $80!

Look! If your horse threw his shoe, bring him back, and I'll re-shoe him!

I done shot that horse!

Well, that's your problem, 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!

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

Or hanged.

What idiot dressed you in that outfit?

Marty

You did.

Marty

Clayton Ravine was named after a teacher. They say she fell in there a hundred years ago.

A hundred years ago? That's this year!

Marty

Every kid in school knows that story 'cause we all have teachers we'd like to see fall into the ravine.

Great Scott! Then she was supposed to go over in that wagon... and now I may have seriously altered history.

In the future, we don't need horses. We have motorized carriages called "automobiles." [barflies laugh]

If everybody's got one of these auto-whats-its, does anybody walk or run any more?

Of course we run, but for recreation. Fun.

Run for fun? What the hell kinda fun is that?! [barflies keep laughing]

Jennifer

Doctor Brown, I brought this note back from the future and now it's erased.

Of course it's erased!

Jennifer

But what does that mean?

It means your future hasn't been written yet. No one's has. Your future is whatever you make it, so make it a good one. Both of you.

Marty

We will, Doc!

Stand back! All right, boys, buckle up.

Marty

Hey, Doc! Where you going now? Back to the future?

Nope. Already been there.

Marty

Doc, Doc! [grabs Doc, who shouts in shock] Okay. Okay! Relax, Doc! It's me! It's Marty!

No! It can't be! I just sent you back to the future.

Marty

I know. You did send me back to the future, but I'm back. I'm back from the future.

Great Scott! [faints]
[Cut to black]

Date: Sunday, November 13, 1955. 7:01 A.M. Last night's time travel experiment was apparently a complete success. Lightning struck the clock tower at precisely 10:04 P.M., sending the necessary 1.21 gigawatts into the time vehicle, which vanished in a brilliant flash of light, leaving a pair of fire trails behind. I therefore assume that Marty and the time vehicle were transported forward through time into the year 1985. After that - After that, I can't recall what happened. In fact, I don't even remember how I got home. Perhaps the gigawatt discharge, coupled with the temporal displacement field generated by the time vehicle, caused a disruption of my own brain waves, resulting in a condition of momentary amnesia. Indeed, I now recall that moments after the time vehicle disappeared into the future, I saw a vision of Marty saying he had come back from the future.

Marty

Hey, Doc.

Undoubtedly, this was some sort of residual image.

Marty

Doc. [Doc sees him, screams, trips on Marty's 2015 hoverboard, and lands on his organ, which plays ascending ominous notes] Doc, calm down, okay?! Just calm down! It's me! It's Marty!

No!!! It can't be you! I sent back to the future!

Marty

That's right, Doc, that's right, but I came back again, I came back from the future. Don't you remember last night? You fainted; I brought ya home.

This can't be happening! [the notes stop playing] You can't be here! It doesn't make sense for you to be here! [goes into the bathrooom] I refuse to even believe that you are here! [slams the door]

Marty

Doc, I am here, and it does make sense! Look, I came back to 1955 again with you, the you from 1985, 'cause we had to get a book from Biff! So, once I got the book back, you, that is, the you from 1985, were in the DeLorean, and it got struck by lightning, and got sent back to 1885!

1885?! [opens the door] It's a very interesting story, future boy, but there's just one little thing that doesn't make sense. If the me of the future is now in the past, how could you possibly know about it?

Marty

You sent me a letter.