Who said "Make your work to be in keeping with your purpose."?

This quote is attributed to Leonardo da Vinci.

Make your work to be in keeping with your purpose. - Leonardo da Vinci

"Make your work to be in keeping with your purpose."

Leonardo da Vinci Work

Polymath Artist Scientist Italian 1452–1519

"Learning never exhausts the mind."

"Simplicity is the ultimate sophistication."

"The observer sees what he observes."

"Art is the queen of all sciences."

"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."