Lawrence G. Lovasik (1999). “The Hidden Power of Kindness: A Practical Handbook for Souls who Dare to Transform the World, One Deed at a Time”, p.189, Sophia Institute Press
Richard Whately, William FITZGERALD (successively Bishop of Cork, Cloyne and Ross, and of Killaloe.) (1853). “Cautions for the times; addressed to the parishioners of a parish in England by their former Rector. Edited and partly written by the Archbishop of Dublin”, p.379