Quotes from book
Masks of the Illuminati

Masks of the Illuminati is a 1981 novel by Robert Anton Wilson, co-author of The Illuminatus! Trilogy and over thirty other influential books. Although not a sequel to the earlier work, it does expand information on many of the topics referred to in the trilogy.

“ONLY THE MADMAN IS ABSOLUTELY SURE.”
Part I : The Eye in the Pyramid p. 176 of 1988 edition
The Illuminatus! Trilogy (1975)
Source: Masks of the Illuminati