For those unfamiliar, Manly P Hall was a total freak of nature. At age of 27, he completed 'The Secret Teachings of All Ages': An Encyclopedic Outline of Masonic, Hermetic, Qabbalistic and Rosicrucian Symbolical Philosophy: Being an Interpretation of the Secret Teachings concealed within the Rituals, Allegories and Mysteries of all Ages' - still considered to this day to be the leading masterpiece on the subject
But not only did he compile such a huge volume of work, he seemed to actually understand it far beyond a mere intellectual level. His understanding was so deep that he gave all his speeches (of which there are many recorded) without notes, and would just speak directly from the heart/mind.
For his mastering of understanding Freemasonic mythology, he was given an honorary 33rd degree as a mason, but from what I know he was never really a mason beyond this. (some of the best insights for anyone curious about Freemasonry would come from Hall)
Again, I wouldn't know where to begin choosing which videos to share... but I am listening to this now and it is amazing. Even when defending a belief so seemingly easily open to ridicule, he defends it with a poetic harmony rarely heard.
Remember, all of this is without notes, he just speaks on a given topic until he is done: