Editing is now the easiest thing on earth to do, and all the things that evolved out of word processing - 'Oh, let's put that sentence there, let's get rid of this' - have become commonplace in films and music too.
“Whatever you do, do it with all your might. Work at it, early and late, in season and out of season, not leaving a stone unturned, and never deferring for a single hour that which can be done just as well now.”