Who said "You can't judge a book by its cover, my friend."?

This quote is attributed to Donkey.

You can't judge a book by its cover, my friend. - Donkey

"You can't judge a book by its cover, my friend."

Donkey Wisdom

"I'm a believer. I believe that life is all about second chances."

"You know what? Forget what I said. You're not worth it."

"I'm not some evil monster. I'm just a little different."

"Pick me! Pick me! I'm a great friend!"

"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."