Who said "Work that does not engage the soul is merely labor."?

This quote is attributed to François Mauriac.

Work that does not engage the soul is merely labor. - François Mauriac

"Work that does not engage the soul is merely labor."

François Mauriac Work

Novelist French 1885–1970

"The writer's duty is to tell the truth as he sees it."

"We must love one another or die."

"Faith is not a luxury for the few; it is a necessity for all."

"The greatest tragedy is indifference."

"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."