Who said "Real strength is admitting when you're weak."?

This quote is attributed to Kenny McCormick.

Real strength is admitting when you're weak. - Kenny McCormick

"Real strength is admitting when you're weak."

Kenny McCormick Strength

"Mmph mmph mrmph!"

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

"Dude, we're in third grade"

"This is so cool"

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."