Who said "Don't watch the clock; do what it does. Keep going."?

This quote is attributed to William Halsey.

Don't watch the clock; do what it does. Keep going. - William Halsey

"Don't watch the clock; do what it does. Keep going."

William Halsey Work

Military Admiral American 1882–1959

"Hit hard, hit fast, hit often."

"There are no great men, only great challenges that ordinary men are forced by circumstance to meet."

"The only thing worse than a battle lost is a battle won."

"Damn the torpedoes, full speed ahead!"

"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."