" Mankind could point with pride to this fine flower of the human spirit--if it were not for one thing: namely that God is God and grace is grace. At this point begins the destruction of our illusions and of our cultural enthusiasm, the great destruction which God himself effects, and which the ancient myth of the tower of Babel typifies. 'And if by grace, then it is no more of works; otherwise grace is no more grace.' Our way to the eternal is interrupted and we are plunged back into the depths from which we came, with out philosophy and art, our morality and religion. For another way now opens, the way of God to man, the way of revelation and grace, the way of Christ, the way of justification by faith alone. 'My ways are not your ways,' that is the answer now. It is not we who go to God, but God who comes to us. It is not religion that sets us right with God, for God alone can do this; it is his action on which we must depend. "

― Dietrich Bonhoeffer , The Collected Sermons of Dietrich Bonhoeffer