Letter 120:13. Damian to young King Henry IV, A. D. 1065 or 1066, wherein Damian exhorts Henry to use his sword against the disturber of the Church’s peace, Cadalus, the bishop of Parma, the antipope Honorius II (d. 1072):
The Fathers of the Church, Medieval Continuation, 1998, Letters 91-120, Owen J. Blum, Irven Michael Resnick, trs., Catholic University of America Press, ISBN 0813208165 ISBN 9780813208169, vol. 5, pp. 393-394. http://books.google.com/books?id=Vlspdtjmhd4C&pg=PA393&dq=%22Let+that+ancient+dragon,+Cadalus,+take+note%22&hl=en&ei=QVpiTIjeIIG88gaFq-SVCQ&sa=X&oi=book_result&ct=result&resnum=2&ved=0CDYQ6AEwAQ#v=onepage&q=%22Let%20that%20ancient%20dragon%2C%20Cadalus%2C%20take%20note%22&f=false
Pierre Damien: Citations en anglais
Letter 61:14. To Pope Nicholas II. Damian “deplores the situation in which bishops live in public concubinage to the scandal of some, and to the delight of others who ridicule the leadership of the Church on this account.” January - July 1059.
The Fathers of the Church, Medieval Continuation, Letters 61-90, 1992, Owen J. Blum, tr., Catholic University of America Press, ISBN 0813207509 ISBN 978-0813207506, vol. 3, p. 12 http://books.google.com/books?id=9smLdu9BvK0C&pg=PA12&dq=%22my+lord+and+venerable+pope,+you+who+take+the+place+of%22&hl=en&ei=N2xiTIOVIYT78Aa0-YGkCQ&sa=X&oi=book_result&ct=result&resnum=1&ved=0CCgQ6AEwAA#v=onepage&q=%22my%20lord%20and%20venerable%20pope%2C%20you%20who%20take%20the%20place%20of%22&f=false
Letter 141:7, To the Chaplains of Duke Godfrey of Tuscany. A.D. 1066.
The Fathers of the Church, Medieval Continuation, 2004, Letters 121- 150, Owen J. Blum, Irven Michael Resnick, trs., Catholic University Press; ISBN 081321372X, ISBN 9780813213729, vol. 6, p. 115 http://books.google.com/books?id=cD_swYLRJOUC&pg=PA115&dq=%22but+now+coming+to+your+shameless+assertion+that+ministers+of+the+altar+should+be+allowed+to+marry%22&hl=en&ei=xIPDTI7dEoP-8Ab59snaBg&sa=X&oi=book_result&ct=result&resnum=1&ved=0CCUQ6AEwAA#v=onepage&q=%22but%20now%20coming%20to%20your%20shameless%20assertion%20that%20ministers%20of%20the%20altar%20should%20be%20allowed%20to%20marry%22&f=false
“But if I have erred in anything, I gladly come before the teaching authority of Peter.”
Letter 65:26. To Hildebrand, "archdeacon and immobile pillar of the Apostolic See," Dec. 1059. Op. Cit., p. 39. http://books.google.com/books?id=9smLdu9BvK0C&pg=PA39&dq=%22if+I+have+erred+in+anything,+I+gladly+come+before+the+teaching+authority%22&hl=en&ei=soXDTKrlNoGB8gbTqujZBg&sa=X&oi=book_result&ct=result&resnum=1&ved=0CCUQ6AEwAA#v=onepage&q=%22if%20I%20have%20erred%20in%20anything%2C%20I%20gladly%20come%20before%20the%20teaching%20authority%22&f=false
Letter 31:38. To Pope Leo IX, A.D. 1049.
The Fathers of the Church, Medieval Continuation, Peter Damian: Letters 31-60, Owen J. Blum, tr., Catholic University of America Press, ISBN 081320707X ISBN 9780813207070, vol. 2, p. 29. http://books.google.com/books?id=3PkYNcU0k94C&pg=PA29&dq=%22Any+cleric+or+monk+who+seduces%22&hl=en&ei=lrZHTP3EHcL78Aac2uDWBA&sa=X&oi=book_result&ct=result&resnum=1&ved=0CCgQ6AEwAA#v=onepage&q=%22Any%20cleric%20or%20monk%20who%20seduces%22&f=false