Who said "Work with passion or don't work at all."?

This quote is attributed to Muhammad Ali.

Work with passion or don't work at all. - Muhammad Ali

"Work with passion or don't work at all."

Muhammad Ali Work

Professional Boxer American 1942–2016

"Service to others is the rent you pay for your room here on Earth."

"He who is not courageous enough to take risks will accomplish nothing in life."

"Don't count the days, make the days count."

"Impossible is nothing."

"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."