Who said "The worker who despises his labor despises himself."?

This quote is attributed to Knut Hamsun.

The worker who despises his labor despises himself. - Knut Hamsun

"The worker who despises his labor despises himself."

Knut Hamsun Work

Novelist Norwegian 1859–1952

"I love the beautiful season when the fruits fall from the trees like rain."

"A man can do what he wills, but he cannot will what he wills."

"The human heart is like a ship on a stormy sea driven about by winds blowing from all four corners of heaven."

"I have committed the great crime of not being ambitious."

"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."