If my calculations are correct, when this baby hits eighty-eight miles per hour... you're gonna see some serious shit.

Dr. Emmett Brown

[kissing George on the head] See ya later, Pop. Wooo, time to change that oil.

Dave McFly

What if I send it in and they don't like it? What if they say I'm no good? What if they say "Get out of here, kid. You got no future." I mean, I just don't think I can take that kind of rejection. Jesus, I'm starting to sound like my old man!

Marty McFly

Like I've always told you, if you put your mind to it, you can accomplish ANYTHING.

George McFly

Mr. McFly! Mr. McFly, this just arrived. Oh, hi, Marty. I think it's your new book.

Biff Tannen

[chased by terrorists] Let's see if you bastards can do 90.

Marty McFly

Biff Tannen: And uh, where's my reports?
George McFly: Uh, well, I haven't finished those up yet, but you know I... I figured since they weren't due till...
Biff Tannen: Hello? Hello? Anybody home? Huh? Think, McFly. Think! I gotta have time to get 'em retyped. Do you realize what would happen if I hand in my reports in your handwriting? I'll get fired. You wouldn't want that to happen, would ya? Would ya?
George McFly: Of course not, Biff. I wouldn't want that to happen. Now, look. I'll finish those reports on up tonight and I'll run 'em on over first thing tomorrow. All right?

Marty McFly: Too loud. I can't believe it. I'm never gonna get a chance to play in front of anybody.
Jennifer Parker: Marty, one rejection isn't the end of the world.
Marty McFly: Nah, I just don't think I'm cut out for music.
Jennifer Parker: But you're good, Marty, you're really good. And this audition tape of yours is great. You've gotta send it in to the record company. It's like Doc's always saying...
Marty McFly: Yeah, I know, I know. If you put your mind to it you can accomplish anything.
Jennifer Parker: That's good advice, Marty.

If you put your mind to it, you can accomplish anything.

Marty McFly

Mr. Strickland: I noticed your band is on the roster for the dance auditions after school today. Why even bother, McFly? You don't have a chance, you're too much like your old man. No McFly ever amounted to anything in the history of Hill Valley!
Marty McFly: Yeah, well, history is gonna change.

Jesus, George, it's a wonder I was ever born.

Marty McFly

Dr. Emmett Brown: What on Earth's this thing I'm wearing?
Marty McFly: Ah, this, this is a radiation suit.
Dr. Emmett Brown: Radiation suit? Of course, because of all the fallout from the atomic wars.

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Back to the Future Quotes

[Marty places headphones over his father's ears and wakes him up by playing Van Halen music at full blast. George wakes up screaming - Marty pauses the music. George looks up to see Marty, who is unrecognizable because he is wearing a radiation suit]
George McFly: Who are you?
Marty McFly: [after giving him another earful of loud rock music] Silence Earthling! My name is Darth Vader. I am an extraterrestrial from the planet Vulcan!
[makes Live Long and Prosper sign with his hand]

[Biff is waxing George's car, it's a silver BMW]
George McFly: Uh... now Biff, I want make sure that we get two coats of wax this time. Not just one.
Biff Tannen: Just finishing up the second coat now.
George McFly: Now Biff, don't con me!
Biff Tannen: I-I'm-I'm sorry, Mr. McFly. I-I meant I was just starting on the second coat.
George McFly: Ahh... Biff. What a character. Always trying to get away with something. I've had to stay on top of Biff ever since High School. Although if it wasn't for him...
Lorraine Baines: We never would have fallen in love.
George McFly: That's right.