Manly Palmer Hall is perhaps most famous for his work The Secret Teachings of All Ages: An Encyclopedic Outline of Masonic, Hermetic, Qabbalistic and Rosicrucian Symbolical Philosophy, published in 1928 when he was 27 years old. In 1934, Hall founded the Philosophical Research Society (PRS) in Los Angeles, California, dedicating it to an idealistic approach to the solution of human problems. The PRS claims to be non-sectarian and entirely free...