Who said "Hard work is its own reward."?

This quote is attributed to Roz.

Hard work is its own reward. - Roz

"Hard work is its own reward."

Roz

"I'm filing a complaint."

"You didn't file your paperwork correctly - that's gonna be a problem."

"I've been working this desk for twenty years, and I know what I'm doing."

"You gotta follow the rules, or nothing works around here."