Read George Will's article today in the paper (link below). It is on the life of his son Jon who has Down Syndrome. Will is a moral unbeliever (last I heard he was a sort of an agnostic--a Cicero of sorts). His love for his son and wonder that people with disabilities bring to the world comes across in a powerful way in this article.
Providentially, I am reading Chesterton's Everlasting Man right now. His retelling of the history of the ancient pagan world and its deep darkness is an excellent counterpoint to Will article. Christ's love has made a difference in the world. I hope that you enjoy the article as much as I did: