Manly P. Hall's lecture series about "Studies in Morals & Dogma by Albert Pike." Manly Palmer Hall (18 March 1901 – 29 August 1990) was a Canadian author, lecturer, astrologer and mystic. Over his 70 year career, he gave thousands of lectures, including two at Carnegie Hall, and published over 150 volumes, although is most known for his 1928 work, The Secret Teachings of All Ages.