Who said "Strength is the only currency that matters."?

This quote is attributed to Nelson Muntz.

Strength is the only currency that matters. - Nelson Muntz

"Strength is the only currency that matters."

Nelson Muntz Strength

"Ha-ha!"

"Your tears of unfathomable sadness!"

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

"Eat my shorts, Simpson!"

"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."