Before I tentatively dropped my ballot paper in the box, I feared that making the jump from being a Labour voter to being a Tory one was going to mess with my head far more than it actually has. I expected disorientation, a sense of not knowing my way about. But, so far at least, the reverse is true. Indeed, some of the landmarks of this new ideological architecture are so familiar, it feels like something of a homecoming. Among the most familiar and welcome of these landmarks is the presence of the Christian notion of original sin. Theorists of...