Who said "The reward for doing good work is more work."?

This quote is attributed to Jonas Salk.

The reward for doing good work is more work. - Jonas Salk

"The reward for doing good work is more work."

Jonas Salk Work

Virologist and Immunologist American 1914–1995

"The reward for work well done is the opportunity to do more."

"Life is an adventure in forgiveness."

"Hope lies in dreams, in imagination, in the courage of those who dare to try."

"Our greatest responsibility is to be good ancestors."

"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."