Thanks for all the suggestions. Or I should say thanks for the same suggestion over and over again. About thirty people have suggested the first chapter of Paul Johnson’s Modern Times which — I should have mentioned — I did know about and have read. Johnson’s very useful on this point and I quote him. But he mostly asserts the impact of Einstein and relativism rather than offer the sorts of examples I’m looking for. What I’m in search of are explicit examples of intellectuals, artists and journalists citing Einstein’s relativity as proof of moral or artistic relativism’s validity. It seems to me that Einstein-induced moral relativism (which good Albert rejected absolutely) is a good example of the naturalistic fallacy. Or am I wrong?