“You’ve gotta go out there and improvise and you’ve gotta be completely unafraid to die. You’ve got to be able to take a chance to die. And you have to die lots. You have to die all the time. You’re goin’ out there with just a whisper of an idea.”
Half decent Bill Murray interview in Esquire; I’d say he’s earned the right to give the kind of advice you’d imagine Hemingway would.