Jim Malone is Professor (Emeritus) of Medical Physics and was Dean of the School of Medicine at Trinity College Dublin. He is a regular consultant to various UN bodies, including the International Atomic Energy Agency and World Health Organisation. He has a wide interest in the humanities, and holds an MA in Contemporary Spirituality.John McEvoy received degrees in Philosophy, Theology, Chemistry and Economics from universities in Galway, Rome, London and Dublin. He worked in the food industry for twelve years and lectured in related areas for thirty years at the Dublin Institute of Technology. He holds a PhD in Theology.