"And of them is he who hearkens to thee and We have cast veils over their hearts so that they understand it not and a deafness into their ears. And (even) if they see every sign they will not believe in it. So much so that when they come to thee they only dispute with thee -- those who disbelieve say: This is naught but stories of the ancients. And they forbid (others) from it, and they keep away from it; and they ruin none but their own souls while they perceive not."