These statements are not in vacuo of a Roman Catholic and Protestant position. They were drafted in the midst of the religious conflict that was then dividing Europe. And they reflect too the temperaments and personal histories of the men who wrote them. Sadoleto's letter has an irenic approach, an emphasis on the unity and peace of the Church, highly characteristic of the Christian Humanism he represented. Calvin's reply is in part a personal defense, an apologia pro vita sua, that records his own religious experience. And its taut, comprehensive argument is characteristic of the disciplined and logical mind of the author of The Institutes of the Christian Religion.