Who said "Wisdom comes from making other people's mistakes."?

This quote is attributed to Nelson Muntz.

Wisdom comes from making other people's mistakes. - Nelson Muntz

"Wisdom comes from making other people's mistakes."

Nelson Muntz Wisdom

"Ha-ha!"

"Your tears of unfathomable sadness!"

"I'm gonna enjoy this, Bart. I'm gonna enjoy this a lot."

"Eat my shorts, Simpson!"

"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."