Quotes by Intermittent The intermittent depression that had shadowed him throughout his adult life was about to envelop him once again. Erik Larson intermittent adults Music is perpetual, and only the hearing is intermittent. Henry David Thoreau intermittent hearing music Music never stops; it is only the listening that is intermittent. Henry David Thoreau intermittent listening The history of our civilization has been one of intermittent war. John Boyd Orr intermittent war civilization