"I would much rather quote a tribute from a totally different type of man, who was nevertheless one of the very few men who, for some reason or other, have ever made head or tail of this unfortunate romance of my youth. He was a distinguished psychoanalyst, of the most modern and scientific sort. He was not a priest; far from it; we might say, like the Frenchman asked if he had lunched on the boat, "au contraire". He did not believe in the Devil; God forbid, if there was any God to forbid. But he was a very keen and eager student of his own subject; and he made my hair stand on end by saying that he had found my very juvenile story useful as a corrective among his morbid patients; especially the process by which each of the diabolical anarchs turns out to be a good citizen in disguise. "I know a number of men who nearly went mad," he said quite gravely, "but were saved because they had really understood The Man Who Was Thursday." He must have been rather generously exaggerative; he may have been mad himself, of course; but then so was I. But I confess it flatters me to think that, in this my period of lunacy, I may have been a little useful to other lunatics."
January 1, 1970
https://en.wikiquote.org/wiki/The_Man_Who_Was_Thursday