Treat a person as he is, and he will remain as he is. Treat a person as if he were where he could be and should be, and he will become what he could be and should be.
In the plays - that's where I go crazy. But my prose has a much lighter touch; it's not trying to thrill with language, just to be more truthful. I'm not concerned with the accuracy of anything. We don't get to the truth of anything with facts.