Who said "Solitude is my preferred state of existence."?

This quote is attributed to Cartman.

Solitude is my preferred state of existence. - Cartman

"Solitude is my preferred state of existence."

Cartman Solitude

"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!"

"Sometimes being the best means being the loneliest."

"Solitude gives us time to reflect on what matters"

"I'm not good with people, never have been."

"I feel like I'm disappearing."