Who said "Fighting for what you believe in usually ends in pain."?

This quote is attributed to Zoidberg.

Fighting for what you believe in usually ends in pain. - Zoidberg

"Fighting for what you believe in usually ends in pain."

Zoidberg Perseverance

"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."

"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."