Manly P Hall (March 18, 1901 – August 29, 1990) was a Canadian-born scholar and philosopher. He is perhaps most famous for his 1928 book The Secret Teachings of All Ages.

“The entire system is an anatomical myth, for the heaven world of the ancients- the domed temple on the top of the mountain- was the skull with its divine contents.” - Manly P. Hall, The Occult Anatomy of Man, pg. 7