The most mentally deranged people are certainly those who see in others indications of insanity they do not notice in themselves.
Leo TolstoyAnd Levin, a happy father and a man in perfect health, was several times so near suicide that he hid the cord, lest he be tempted to hang himself, and was afraid to go out with his gun, for fear of shooting himself. But Levin did not shoot himself, and did not hang himself; he went on living.
Leo Tolstoy