"Who stands fast? Only the man whose final standard is not his reason, his principles, his conscience, his freedom, or his virtue, but who is ready to sacrifice all this when he is called to obedient and responsible action in faith and in exclusive allegiance to God -- the responsible man, who tries to make his whole life an answer to the question and call of God."

-Dietrich Bonhoeffer, "After Ten Years",  An essay on what he and others had learned in the ten years since Hitler's ascension to power.