Visionary thinker Jane Jacobs uses her authoritative work on urban life and economies to show us how we can protect and strengthen our culture and communities.In Dark Age Ahead, Jane Jacobs identifies five pillars of our culture that we depend on but which are in serious decline: community and family; higher education; the effective practice of science; taxation and government; and self-policing by learned professions. The decay of these pillars, Jacobs contends, is behind su