The lunatic is all idée fixe, and whatever he comes across confirms his lunacy. You can tell him by the liberties he takes with common sense, by his flashes of inspiration, and by the fact that sooner or later he brings up the Templars.
Umberto EcoThus I rediscovered what writers have always known (and have told us again and again): books always speak of other books, and every story tells a story that has already been told.
Umberto EcoThe faith a movement proclaims doesn't count: what counts is the hope it offers. All heresies are the banner of a reality, an exclusion. Scratch the heresy and you will find the leper. Every battle against heresy wants only this: to keep the leper as he is.
Umberto Eco