Fellow marchers, so much has changed in 50 years. We have endured war and we've fashioned peace. We've seen technological wonders that touch every aspect of our lives. We take for granted conveniences that our parents could have scarcely imagined. But what has not changed is the imperative of citizenship; that willingness of a 26-year-old deacon, or a Unitarian minister, or a young mother of five to decide they loved this country so much that they'd risk everything to realize its promise.