“Somehow, he created an environment that was both demanding and incredibly fun. He suppressed a smile at our silliness—just letting the corner of his mouth turn up slightly so we could see his amusement—and told us bluntly when our work wasn’t good enough. We loved him. But we also feared him, in a healthy way. Because he made us feel important, because he so obviously cared about what he was doing and about us, we desperately wanted to please him.”