Who said "Whatever is worth doing at all is worth doing well."?

This quote is attributed to George Washington Carver.

Whatever is worth doing at all is worth doing well. - George Washington Carver

"Whatever is worth doing at all is worth doing well."

George Washington Carver Work

Agricultural Scientist American 1864–1943

"At the laboratory bench, I find my greatest pleasure and my most intimate relationship with the Creator."

"Education is the great civilizer and opens doors to endless possibilities."

"There is no shortcut to any place worth going."

"How far we have yet to go in the realm of pure science and discovery."

"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."