Marty McFly:
"Damn, I'm late for school! (Cue the Power of Love:))" "Jesus Christ Doc, you disintegrated Einstein!" "Are you telling me that you built a time machine...out of a DeLorean?!" "Are you telling me that this sucker is nuclear?!" "You're the Doc, Doc!"
"Whoa, this is heavy!"
"If you put your mind to it, you can accomplish anything."
"All right. This one's an oldie, but,uh... well it's an oldie where I come from."
"I guess you guys aren't
ready for that yet, but your kids are gonna love it."
"Oh, and one more thing, if you guys ever have kids and one
of them, when he's eight years old, accidentally sets fire to the living room rug, go easy on him."
Doc Brown: "1.21 GIGAWATTS!!!"
"This is science experiment number one."
"If my
calculations are correct, when this baby hits 88 miles per hour, you're gonna see some serious sh*t."
"This is what
makes time travel possible! The flux capacitor!!!"
"Great Scott!"
"Do you know what this means? It means that
this damn thing doesn't work at all!!"
"Don't worry. As long as you hit that wire with the connecting hook at precisely
88 miles an hour, the instant the lightning strikes the tower... everything will be fine!"
Biff Tannen:
"Hey McFly! I thought I told you never to come in here!"
"Well looky who
we have here"
"So why don't you make like a tree and get outta here."
"Well whatta you looking at, butthead?"
"Hello? Hello? Anybody home, huh, Think McFly! Think!"
"Say hi to your mom for me."