Who said "The only thing constant in life is change."?

This quote is attributed to Zoidberg.

The only thing constant in life is change. - Zoidberg

"The only thing constant in life is change."

Zoidberg Change

"Why must I be a monster?"

"I've gone back in time to when dinosaurs weren't extinct."

"Wha-? Oh, is the cute doctor asking me out?"

"Your music is bad, and you should feel bad."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."