Marty McFly

"This is heavy."

"There's that word again, 'heavy.' Is there something wrong with the Earth's gravitational pull?"

"I'm your density. I mean, your destiny."

"You're my best friend, and I care about you, but don't ask me to do this."

"If my calculations are correct, when this baby hits 88 miles per hour, you're gonna see some serious stuff."

"I guess you guys aren't ready for that yet. But your kids are gonna love it."

"The way I see it, if you're gonna construct a time machine into a car, why not do it with some style?"

"Nobody calls me chicken!"

"I can't believe I'm related to somebody who has the same first name as a street."

"You're my mom. This is crazy."

"I went back in time and accidentally made my mom fall in love with me instead of my dad."

"I'm trying to be responsible about this."

"Are you telling me you built a time machine... out of a DeLorean?"

"This is insane. This is insane! Doc, you disintegrated Einstein!"

"I don't think I can handle this."

"What if I do something that prevents them from meeting?"

"I'm not his son, I gotta get back to 1985."

"Whoa, whoa, whoa! What does that mean, 'whoa'? You know, like, whoa."

"I know, heavy. Is there something wrong with the Earth's gravitational pull in the future?"

"You're telling me that you built a time machine out of a DeLorean?"

"All we need is a little plutonium."

"Gee, I don't know, Doc. I haven't really thought about it."

"We could make it."

"This is a pen."

"I don't think I can handle this."

"This is it, this is the moment we've been waiting for."

"I'm gonna go back and I'm gonna find out what happened."

"I just have to figure out a way to do this."

"It's your responsibility now."

"I'm not going to let my parents suffer like this."