I'm a big fan of rehearsal. I'm famous for pulling the cast together, not so much to formally rehearse, but just to run the lines. My theory of acting is that it takes all your attention just to stay in the moment, and keep your attention on the other person, and get him to do what you want him to do.
History--the product, not the raw material--is a bottle with a label. For many years now, the emphasis of historical discussion has been laid upon the label (its iconography, its target-group of customers) and upon the interesting problems of manufacturing bottle-glass. The contents, on the other hand, are tasted in a knowing, perfunctory way and then spat out again. Only amateurs swallow them.