Translations of and commentaries on eight tractates of the ancient Corpus Hermeticum which provide a detailed understanding of Hermetic philosophy and ancient Greco-Roman mysticism. Tractate I. Poemandres Tractate III. An Esoteric Mythos Tractate IV. From Hermes To Thoth: Chaldron Or Monas Tractate VI. That In The Theos Alone Is Nobility And Not Anywhere Else Tractate VIII. That no beings are lost, despite mortals mistakenly claiming that such transformations are death and a loss. Tractate XI. From Perceiverance To Hermes Tractate XII. To Thoth, Concerning Mutual Perceiveration Tractate XIII. Hermes Trismegistus To His Son Thoth. An Esoteric Discourse Concerning Palingenesis And The Requirement of Silence