Ignorance of ignorance, then, is that self-satisfied state of unawareness in which man, knowing nothing outside the limited area of his physical senses, bumptiously declares there is nothing more to know!
Manly P. Hall (2010). “The Secret Teachings of All Ages: An Encyclopedic Outline of Masonic, Hermetic, Qabbalistic and Rosicrucian Symbolical Philosophy”, p.604, Courier Corporation
