⚠faint text from the following page is visible through the thin paper

OF ERRORS

AND

of the Truth.

original title: "Des Erreurs et de la Vérité." This is the title page for the 1775 foundational work by Louis-Claude de Saint-Martin (1743–1803), who published under the pseudonym "The Unknown Philosopher." This text is a cornerstone of "Martinism," a school of mystical philosophy that emerged in 18th-century France as a spiritual counterpoint to the purely rationalist thinkers of the Enlightenment.