"At first Leonardo's procrastination led to amusing tales, such as the time the church prior became frustrated and complained to Ludovico. "He wanted him never to lay down his brush, as if he were a laborer hoeing the Prior's garden," Vasari wrote. When Leonardo was summoned by the duke, they ended up having a discussion of how creativity occurs. Sometimes it requires going slowly, pausing, even procrastinating. That allows ideas to marinate, Leonardo explained. Intuition needs nurturing. "Men of lofty genius sometimes accomplish the most when they work least," he told the duke, "for their minds are occupied with their ideas and the perfection of their conceptions, to which they afterwards give form."