Who said "Wisdom comes from making mistakes and learning."?

This quote is attributed to Kenny McCormick.

Wisdom comes from making mistakes and learning. - Kenny McCormick

"Wisdom comes from making mistakes and learning."

Kenny McCormick Wisdom

"Mmph mmph mrmph!"

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

"Dude, we're in third grade"

"This is so cool"

"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."