Who said "I give my gratitude freely, though it's rarely returned."?

This quote is attributed to Zoidberg.

I give my gratitude freely, though it's rarely returned. - Zoidberg

"I give my gratitude freely, though it's rarely returned."

Zoidberg Kindness

"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."

"A good man treats his wife with respect."

"Kindness always comes back around."

"The power of a smile can change everything."

"Kindness is weakness to some. Not to me."