One time, when we'd been discussing martial arts, Murphy told me that eventually, no-one can teach you anything more about them. Once you reach that state of knowledge, the only way to keep learning and increasing your own skill is to teach what you know to others. That's why she teaches a children's class and a rape-defence course every spring and fall at one of her neighbourhood's community centres. It sounded kind of flaky-Zen to me at the time, but Hell's bells, she'd been right. Once upon a time, it would have taken me an hour, if not more, to attain the proper frame of mind. In the course of teaching Molly to meditate, though, I had found myself going over the basics again for the first time in years, and understanding them with a deeper and richer perspective than I'd had when I was her age. I'd been getting almost as much insight and new understanding of my knowledge from teaching Molly as she'd been learning from me.