The writer had been a perfect crazed-wits, Elminster decided early on, and paranoid to boot. What little magic the Netherese mage had set down was twisted by the periodic ravings of a tenuous sanity and by the suspicion-driven cloaking of facts in a torturous maze of codes, obtuse jargon, deliberate misinformation, and mystical gibberish. The obvious intent was to conceal magical truths from unauthorized readers—all relatively sane wizards, for instance.
Shadows of Doom by Ed Greenwood
Warden: [Morrigan] knows how you extend your unnatural lifespan.
Flemeth: That she does. The question is, do you?
"Many stories are told of Zaphod Beeblebrox's journey to the Frogstar. 10% of them are 95% true, 14% of them are 65% true, 35% of them are only 5% true, and all the rest of them are told by Zaphod Beeblebrox."
— Narrator, The Hitchhiker's Guide to the Galaxy