Who said "I'm not stopping until we've made the world a better place."?

This quote is attributed to Donkey.

I'm not stopping until we've made the world a better place. - Donkey

"I'm not stopping until we've made the world a better place."

Donkey Perseverance

"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!"

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."