I follow my instinct — that's what I always try to do. For example, a priest has a Bible next to him and the lawyers use the book of laws, but we directors have no Bible — we just have our instinct. For example, if something doesn't go well in the course of the day, we go back home and we watch the films of our mentors, Hitchcock in my case, Claude Chabrol, Ki-young Kim. I watch their interviews as well — that's the kind of thing I do for the time being.