Who said "Adults are idiots who think they know everything."?

This quote is attributed to Cartman.

Adults are idiots who think they know everything. - Cartman

"Adults are idiots who think they know everything."

Cartman Wisdom

"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!"

"I'm not angry, I'm just disappointed."

"The best things in life are free."

"You can't have everything in life, but you can have what matters most."

"A woman's intuition is rarely wrong."