Who said "Work is only work if you're not having fun doing it."?

This quote is attributed to Billy.

Work is only work if you're not having fun doing it. - Billy

"Work is only work if you're not having fun doing it."

Billy Work

"I'm a big fan of science!"

"Mandy, wouldn't it be great if we could stay young forever?"

"I love the smell of destruction in the morning!"

"Why does everything have to be so complicated?"

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."