The trick, it seems to me, is to stave off regret. That's what the whole thing is about. And we can't stave it off forever, because it is impossible not to make the mistakes that let regret in, but the best of us manage to limp on into our sixties or seventies before we succumb. Me, I made it to about thirty-seven, and David made it to the same age, and my brother gave up the ghost even before that. And I'm not sure that there is a cure for regret. I suspect not.