What I learned most was how to tell a story in 15 seconds or 30 seconds or 60 seconds - to have some kind of goal of what to try to do and make it happen in that time.
As one gets older one sees many more paths that could be taken. Artists sense within their own work that kind of swelling of possibilities, which may seem a freedom or a confusion.
When I first started acting, and we would all sit down and talk about Shakespeare and how great it was. I thought well, I suppose it is.