Santa is our culture's only mythic figure truly believed in by a large percentage of the population. It's a fact that most of the true believers are under eight years old, and that's a pity.
Ah, tell me not that memory sheds gladness o'er the past, what is recalled by faded flowers, save that they did not last?
One of the things I have tried to do with this book and with all of them really is avoid that simple, easy, reductionist view of motivation and to show we do things for a complex net of reasons, a real braid of reasons.