“It's in this book I was reading. Apparently, there's a little red demon dwarf that haunts the city, and before every major bad thing that's happened, it's appeared to somebody. Last time, he appeared in a Cadillac.”

Source: Innumeracy: Mathematical Illiteracy and its Consequences (1988), Chapter 4, “Whence Innumeracy?” (p. 110)

Source: The Haunted Bookshop

Old Kingdom series (The Abhorsen Trilogy), Abhorsen (2003)

Technology Review (July 1996)

Letter to Pamela Clemens Moffet, 9 November 1869, in Albert Bigelow Paine, Mark Twain's Letters: Arranged with Comment (1917), Vol. 1, p. 168 http://books.google.com/books?id=Ia8hAAAAMAAJ&pg=PA168

"Introduction" http://www.bopsecrets.org/rexroth/autobio/1.htm
An Autobiographical Novel (1991)
Context: Any writer, reading over the typescript of a book for the last time before sending it off to the publisher, must wonder what all the effort was for. An autobiography is specially in need of justification to its author. It is a work of self-justification which itself needs justifying. Why have I written this book? Why have I written it the way I have? What does it mean to me? What do I hope it will mean to others?
Each human being has at the final core of self a crystal from which the whole manifold of the personality develops, a secret molecular lattice which governs the unfolding of all the structures of the individuality, in time, in space, in memory, in action and contemplation. Asleep there were just these dreams and no others. Awake there were these actions only. Only these deeds came into being.

As quoted in International Herald Tribune (Paris, 5 November 1991)