"I'm Biff. Nobody, and I mean NOBODY, beats Biff Tannen!"
Strength
"You're a slacker, McFly. You're a cow, you're a chicken. Maybe I'll vote for you."
Humor
"I own a police force now!"
Power
"Life is short. Might as well make it count."
Life
"Why should I do something if I don't feel like it?"
Freedom
"Grease is the word!"
"You better give me my $300!"
Money
"That's a nice little shot, McFly."
"I'm your worst nightmare, pal."
Fear
"I like the future. I like how I'm living in the future."
Success
"I'm the most powerful man in this town."
Power
"You're nothing but a little weasel, McFly!"
"Why don't you make yourself useful?"
Work
"I don't need your help. I'm Biff Tannen!"
"That's my desk now, McFly."
"I rule the world!"
Power
"Every time I think about the future, it makes me thirsty."
Humor
"You McFlys are all the same, a bunch of chickens!"
"I'm not taking any orders from anyone."
Freedom
"You gotta accept the consequences of your actions, McFly."
"I've got bigger fish to fry."
"Nobody's got money like Biff."
"I'm built for success."
Success
"That's what I like about the future. No cops."
Freedom
"I'm the king of this world!"
Power
"You better watch your tongue, McFly."
"I don't take orders from nobody!"
"This is the life, McFly. No rules, no limits."
Freedom
"I've earned everything I've got."
Perseverance
"You got what it takes to be like me?"
Strength