Fr Thomas Crean entered the Order of Preachers (Dominicans) in 1995 and was ordained to the priesthood in 2001. He received a doctorate in theology from the International Theological Institute in Austria. He has worked in parish, student, and hospital ministry and has taught theology and philosophy in Ireland, Austria and the United States. He has published in Augustinianum and New Blackfriars, and is the author of several books, including A Catholic Replies to Professor Dawkins, The Saints and the Mass, and Integralism: A Manual of Political Philosophy (with Alan Fimister). He is a member of the Dialogos Institute and the Albert the Great Center for Scholastic Studies. His book on the procession of the Holy Spirit and the Council of Florence, Florence Became a New Sion, is due to be published shortly by Emmaus Academic.