" The understanding of time and place that L'Arche represents, which is a challenge to the speed and placelessness of modernity, helps us understand part of the problem we face as the church today. Having lost the power and status we had in societies we thought we had Christianized, we Christians now find ourselves most often on the wrong side of the "progressive" forces of human history. In response, many Christians want to identify with the alleged humanisms produced by speed and placelessness. So the church finds herself saying constantly, "Oh, yes, we support that too! Oh, yes, we think these developments are wonderful."
Who can be against knowing more and more about the genome in order to help us become well before we become sick? It's a deep temptation for the church to say, "Hey, we're on the side of historical progress, too!"
Of course, if you say that L'Arche knows it cannot welcome everyone who has a mental handicap and seeks to offer not a solution but a sign, that doesn't sound like good news in a world built on speed and placelessness. The question then becomes, "Well, does that mean you are against trying to cure cancer?" After all, "progress" we assume means eliminating what threatens to kill us or at least slow us down. But you can cure cancer without eliminating the patient. You cannot "cure" the mentally handicapped without eliminating the patient. L'Arche stands as a reminder that "progress" should not mean eliminating all that threatens us. After all, even if you cure cancer, you are going to die of some other ailment. L'Arche dares in the face of death and by so doing transforms what we mean by "progress. "

― Stanley Hauerwas , Living Gently in a Violent World: The Prophetic Witness of Weakness