 In 1952, Reinhold Niebuhr expressed gratitude to Cherbonnier in his Preface to "The Irony Of American History" "for careful reading of my manuscript and for many suggestions for its improvement".In 1955, Cherbonnier’s book "Hardness of Heart" was published by Doubleday.A volume in the “Christian Faith Series” edited by Reinhold Niebuhr, the study provided a contemporary interpretation of the doctrine of sin.