Character: Dr. Emmett Brown

Awesome.
- That word again. "Mortality". Why in the future all falls? There you have it, some problems with gravity?

Forgot your Luggage! Who knows, maybe they will not in the future of cotton panties, and on synthetics I have allergies.

"So, Marty, I say you goodbye and wish you good speed. You were a kind and loyal friend. Without you my life would have been different. I will treasure your friendship and cherish your heart good memories and warm feelings. Your friend in time, Doc Emmett L. brown. September 1, 1885".
- Didn't know that I can write something touching.
- However, you wrote, Doc. Very touching.

The future is not written, you can change it, you know it. Everyone can make a future the way you wish. I will not allow from the pictures depended my fate. I want to live as I see fit to live as your heart.

It will be an awesome wreck! Sorry, no one will see...

In the future don't need horses. There are automated carts - cars.
- If everyone will have a car, nor to walk, nor run, nobody will?
- Certainly will. But for fun and health.
- To run for pleasure? What fun it is?

- Manifold injector flew. I have a month it will take to repair.
- A month? Doc, you'll be shot on Monday!
I know, I know, I know! Wait, idea! You need to roll the car a steep hill! No, we don't find a flat surface, unless... of Course, ice. Wait until winter when the lake freezes...
- Until the winter?! Doc, what are you talking about? Until Monday, only three days!

- You need to do something with those clothes. If you walk around town - shoot.
- Or hang.
- What kind of idiot you into this dressed up?
- You!

- You owe me money, blacksmith!
- Why did you decide?
- The horse jumped the horseshoe. You nailed it, so that makes you responsible.
Well, since you never paid me for the work, so we're even.

- Are you sure what you did then?
- Of course, you westerns have not watched?
Yes, I did, Doc, and Clint Eastwood nothing of the sort wore.
- What, Clint?
- All right, you about it have not heard.
Marty, put on those boots! Such gizmos in 1885, did not wear! In 1955, too! [indicates Marty sneakers]

- Sorry, Doc, it's my fault that you're stuck in the past. It was necessary to keep Biff away.
- There's lots of places worse than the Wild West. Would fall in the middle Ages I would be burned at the stake, considered a heretic.

- Doc, Doc!
What? Aah!
- Relax, Doc, it's me, Marty.
- No, Marty, I sent you into the future!
I know sent, but I'm back. Came back from the future.
Oh, that sucks.

- Marty, where are you?
- Guys Biff pursue you everywhere... me!
- So get out of there!
- Not me, Doc! Other me. That which now stands on stage.
- What the hell! Another Marty misses the lightning, you don't come back in the future and there's a paradox!
- What a paradox, Doc? Your paradox could destroy the Universe?
- Exactly!

Exactly, MLC, on 12 November 1955.
Incredibly, the old Biff chose that date! Perhaps this moment of time, by definition, has a universal value, the connection point of the space-time continuum. Maybe it's a coincidence.