Jane Jacobs: a legendary advocate for sensible urban planning.  Her writing and activism turned the tide in favor of historic preservation, diverse, walkable neighborhoods, and contextually sensitive policy.  In midcentury America, it was fashionable for planners to raze entire districts and drag residents into the future with grandiose projects.  Jacobs’ idea was simple: let people dictate how they should live.  Listen; make small, lasting improvements.  Protect community ties.  The debt we owe Jacobs is immeasurable.