Who said "Beauty fades, but cruelty? That's forever."?

This quote is attributed to Nelson Muntz.

Beauty fades, but cruelty? That's forever. - Nelson Muntz

"Beauty fades, but cruelty? That's forever."

Nelson Muntz Beauty

"Ha-ha!"

"Your tears of unfathomable sadness!"

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

"Eat my shorts, Simpson!"

"Beauty comes in many forms."

"Beauty comes from within."

"True beauty lies in authenticity."

"Beauty exists in the most unexpected places."