For me, the real goal is to integrate. The thing that I'm most happy with is the fact that I've been able to keep doing all of it - to keep writing, and to keep acting in movies, and to keep acting on the stage, to keep directing plays. I find that they feed each other, and that I learn about acting from directing and I learn about writing from acting.
My metaphor for acting in movies - not on stage because it's completely different on stage - is to put colors on an easel for the director to paint his own painting with in the editing room, long after I've left. You buy me for red and black, so I better give you really great red and black, but if I can give you purple, pink, green and brown too, I will.