Philosophy, Aristotle is well known to have said, begins in wonder. So, of course, does everything else. Astronomy begins in wonder at the moving lights in the sky; biology, in wonder at the living creatures of the earth; psychology, in wonder at the intricacies and eccentricities of our distinctively human form of life. So, at best, wonder is only a necessary condition for philosophy. What. is peculiar about philosophers is what we are inclined to wonder about. We wonder about everything. In particular, we wonder about astron- omy and biology and psychology (and about philosophy) - about...