“Two people have perhaps done more than any others to direct my thoughts and prayers for the last nine or ten years: Dom Joseph Warrilow of Quarr Abbey and Professor Donald MacKinnon, Norris-Hulse Professor Emeritus in the Univer- sity of Cambridge. What I owe to these men is not easily expressible, and I must be content with this barest of ack- nowledgements to voice my love, respect and gratitude.”