Who said "If you're not with me, you're against me."?

This quote is attributed to Cartman.

If you're not with me, you're against me. - Cartman

"If you're not with me, you're against me."

Cartman Leadership

"Screw you guys, I'm going home!"

"I'm not fat, I'm just big-boned!"

"You will respect my authority!"

"Hippies, they're everywhere!"

"A leader must be fair and just."

"Integrity is everything."

"One must take responsibility for one's environment."

"In this house, I make the decisions"