“One of the sayings of Diogenes was that most men were within a finger’s breadth of being mad; for if a man walked with his middle finger pointing out, folks would think him mad, but not so if it were his forefinger.”

“Man knows so little about his fellows. In his eyes all men or women act upon what he believes would motivate him if he were mad enough to do what the other man or woman is doing.”

“When a man points a finger at someone else, he should remember that four of his fingers are pointing to himself.”

“Jace snorted so loudly that she turned on him with a frown. He wiggled his mud-caked fingers at her. His nails were black crescents. "Filthy inside and out.”

“But his soul was mad. Being alone in the wilderness, it had looked within itself and, by heavens I tell you, it had gone mad.”

“Men are so necessarily mad, that not to be mad would amount to another form of madness.”

“O but it is a fine thing to have a finger pointed at one, and to hear people say, "That's the man!"”
At pulchrum est digito monstrari et dicier "hic est".

“One man was so mad at me that he ended his letter: “Beware. You will never get out of this world alive.””

“The premonition of madness is complicated by the fear of lucidity in madness, the fear of the moments of return and reunion, when the intuition of disaster is so painful that it almost provokes a greater madness […] One would welcome chaos if one were not afraid of lights in it.”

“They were not aware of the madness that lurked within their own minds.”