"people six hundred years later are still complaining about violence inflicted on their ancestors." "I think you will find that in most of those cases, there are fresh or current problems that are being given some kind of historical reinforcement or ratification. If any of these resentful populations were prospering, the distant past would only be history. People only invoke history to ballast their arguments in the present." "Maybe so. But sometimes it seems to me that people just like to hold on to their grievances. Righteous indignation is like some kind of drug or religious mania, addictive and stupidifying."