Who said "Strength is knowing when to fight and when to walk away."?

This quote is attributed to Daffy Duck.

Strength is knowing when to fight and when to walk away. - Daffy Duck

"Strength is knowing when to fight and when to walk away."

Daffy Duck Strength

"Thufferin' succotash! That's the most ridiculous thing I've ever heard!"

"Life's too short to be serious all the time - you gotta laugh!"

"Love is just a word until you find someone who makes it mean something real."

"The secret to happiness is not taking yourself too seriously."

"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."