"Can we who have had the joy of knowing that we are not orphans, that we have a Father, be indifferent to this city which asks of us, perhaps even unwittingly, without being aware of it, a hope that will help it look to the future with greater confidence and serenity? We cannot remain indifferent. . . . Words without witness are hot air. Words do not suffice. It must be the true witness that Paul speaks of."