"The once born James took to be native optimists who tended to see everyday life and religion on the surface: hopeful positive, well ordered, progressive. The twice born, in contrast, were more pessimistic. They tended to focus on the darker underside of experience. The twice born were absorbed by questions of social injustice and personal pain"- Arthur Kleinman(M.D) in The Illness Narratives, page 54.

This quote seemed like a very apt description of types to me.