The quotations from the following works are included by kind permission of the publishers mentioned:
Karl Barth, Church Dogmatics: T. & T. Clark, Edinburgh;
Gilbert Murray, Essays and Addresses: George Allen and Unwin Ltd., London;
P. H. Nowell-Smith, Ethics: Penguin Books Ltd., London;
Reinhold Niebuhr, The Nature and Destiny of Man: James Nisbet and Co. Ltd., London; Charles Scribner's Sons, New York;
W. G. Pollard, Chance and Providence: Faber & Faber Ltd., London; Charles Scribner's Sons, New York.
The Author's widow and the Publishers would like to express their gratitude to Professor T. F. Torrance and to Professor John McIntyre for reading through this series of lectures initially, and for giving them the assurance that the lectures were suitably prepared for publication. And they are particularly indebted to Dr McIntyre for his great kindness in seeing them through the press, and for the work involved in reading the proofs.