The lunatic is all idรฉe 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 EcoYou always want someone to hate in order to feel justified in your own misery. Hatred is the true primordial passion. It is love that's abnormal. That is why Christ was killed: he spoke against nature. You don't love someone for your whole life - that impossible hope is the source of adultery, matricide, betrayal of friends ... But you can hate someone for your whole life - provided he's always there to keep your hatred alive. Hatred warms the heart.
Umberto EcoOnce upon a time there were mass media, and they were wicked, of course, and there was a guilty party. Then there were the virtuous voices that accused the criminals. And Art (ah, what luck!) offered alternatives, for those who were not prisoners to the mass media.
Umberto Eco