Back to the Future

"Stand tall, George. Have some respect for yourself."

"I'm changing what will be."

"This is the answer, it's not my kid."

"Something's gotta be done about your kids."

"But your kids are gonna love it."

"I guess you guys aren't ready for that yet."

"Maybe I can prevent the whole thing."

"I'm not good at confrontations."

"What are you looking at, butthead?"

"I don't think I'm getting through to him."

"Lorraine, my density has popped me to your time."

"I'm not very good at science."

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

"This is heavy."

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