As a teacher, I do not prepare a lesson. I prepare only myself. I prepare myself to teach, to model, and even, perhaps especially, to fail. I do not offer my knowledge. I only offer myself, with my knowledge certainly, and with my experience, but also with my failures and inadequacies. No amount of lesson preparation can covera poverty of self-preparation, and this self-preparation is not a matter of a few hours the night before class. It is a matter of a life lived. I prepare myself to teach with every moment that I live, for good or for ill. I am always preparing to teach, and I can only hope that I am preparing well.