`  Sorry not to have caught up on this - I apologise please delete 'religion' and substitute ``enthusiasms`` http://www.econlib.org/library/LFBooks/Hume/hmMPL10.html#Part%20I,%20Essay%20X,%20OF%20SUPERSTITION%20AND%20ENTHUSIASM Mea culpa         Essays Moral, Political, and Literary (1742-1754)  ESSAY X: OF SUPERSTITION AND ENTHUSIASM  THAT the corruption of the best things produces the worst, is grown into a maxim, and is commonly proved, among other instances, by the pernicious effects of superstition and corruptions of true religion.`