Earlier quoted context omitted.
Stamina isn't the word I would go for. It would be commitment. For those that have loads of stamina, it's the commitment to continuous creative encounters that leads to the perceived magic. From "Courage to Create" by Rollo May: "It is said that the novelist Thomas Wolfe, who was one of the highly creative figures of the American scene, that he was a "genius without talent." But he was so creative because he threw hi…
“Nothing in this world can take the place of persistence. Talent will not; nothing is more common than unsuccessful people with talent. Genius will not; unrewarded genius is almost a proverb. Education will not; the world is full of educated derelicts. Persistence and determination alone are omnipotent. The slogan "press on" has solved and always will solve the problems of the human race” - Calvin Coolidge
It is possible to "press on" in the wrong direction.