“I do not think that there is any other quality so essential to success of any kind as the quality of perseverance. It overcomes almost everything, even nature.”

John D. Rockefeller
Original source
As quoted in How They Succeeded (1901) by Orison Swett Marden

Recommended reading

Curated resources for this quote coming soon.

Verification: Imported from Wikiquote (CC-BY-SA); admin-approved