Who said "My work is never finished while mysteries remain."?

This quote is attributed to Velma Dinkley.

My work is never finished while mysteries remain. - Velma Dinkley

"My work is never finished while mysteries remain."

Velma Dinkley Work

"Jinkies!"

"My glasses! I can't see without my glasses!"

"Let's split up, gang."

"This is no accident. There are clues here."

"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."