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- Who: Hermes Trismegistus combines the Greek god Hermes with the Egyptian god Thoth; he is not an identifiable historical author.
- Texts: The Hermetica are writings attributed to Hermes, including the Corpus Hermeticum, Asclepius and Hermetic works preserved at Nag Hammadi.
- Origins: The principal philosophical Hermetica are usually dated to the first three centuries AD and associated with Roman Egypt.
- Later works: The Emerald Tablet is attested in early medieval Arabic works; The Kybalion, published in 1908, is not an ancient Hermetic text.
Hermes Trismegistus is a composite divine teacher combining Hermes and Thoth, and the Hermetica are writings attributed to him, principally philosophical and religious works developed in Roman Egypt during the first three centuries AD. They explore divine mind, humanity and spiritual transformation. Their history extends through Greek, Latin and Coptic transmission to Renaissance interpretation. The Emerald Tablet belongs to a later Arabic and Latin tradition, while The Kybalion is a modern work from 1908.
This guide moves from the identity of Hermes Trismegistus to the composition and teachings of the Hermetica, then to their preservation at Nag Hammadi. It follows their Renaissance reception and distinguishes the Emerald Tablet from the ancient philosophical writings, before closing with related guides and texts.
Who Hermes Trismegistus is
Hermes Trismegistus brings together the Greek god Hermes and the Egyptian god Thoth. The Greek epithet Trismegistus means thrice-greatest. Thoth was associated with writing, wisdom and sacred knowledge, associations that belong to the background of this composite teaching figure. Hermes Trismegistus is not an identifiable historical writer whose life can be reconstructed, even though writings circulated under his name.
Attribution to Hermes therefore does not establish authorship by one person. The ancient writings associated with him combine Egyptian religious traditions with Greek philosophical ideas. Scholars study them as evidence of religious and philosophical exchange in Roman Egypt, as well as for their later reception. Their attribution identifies a shared teaching figure, rather than supplying a biography of the people who composed the works.
What the Hermetica contain and how they were written
The Hermetica are a body of writings, not a single book. Scholars distinguish philosophical and religious works from technical Hermetica concerned with astrology, alchemy and magic. The principal surviving philosophical works were originally composed in Greek and are usually dated to the first three centuries AD. Roman Egypt is generally regarded as their principal setting. Many present instruction as a dialogue between a revealer and a pupil.
The Corpus Hermeticum contains seventeen Greek philosophical and religious treatises and survives through a Byzantine Greek manuscript tradition. Its opening treatise is conventionally called Poimandres. Asclepius has a different transmission history: it survives complete in Latin translation, while its underlying Greek work, known as the Perfect Discourse, is lost. These distinct routes of preservation are part of the history of the Hermetica, rather than evidence of one continuously transmitted volume.
What the philosophical texts teach
Divine mind is central to many philosophical Hermetica. Poimandres presents a revelation concerning divine mind, the origin of the cosmos and humanity's spiritual destiny. More broadly, Hermetic writings frequently connect knowledge of God with knowledge of oneself as paths toward spiritual transformation. Their accounts of human beings often distinguish the mortal body from a spiritual capacity related to the divine. These are descriptions of the texts' religious outlook, not a single doctrine shared in every detail.
The material world does not receive a uniform treatment: some writings celebrate the cosmos as divine creation rather than simply treating it as evil. Prayer, praise, purification and spiritual rebirth accompany philosophical instruction. Asclepius also discusses sacred statues understood as capable of receiving divine presence, and a prophecy of Egypt's religious desolation followed by cosmic renewal. Augustine later discussed and criticized that work in The City of God.
The Hermetic writings at Nag Hammadi
The Nag Hammadi manuscripts were discovered in Upper Egypt in 1945. Codex VI preserves three Hermetic works in Coptic: The Discourse on the Eighth and Ninth, The Prayer of Thanksgiving and an excerpt from Asclepius. Their presence gives the history of Hermetic transmission a Coptic dimension alongside its Greek and Latin witnesses. The Prayer of Thanksgiving is itself attested in Greek and Latin as well as Coptic.
The Discourse on the Eighth and Ninth portrays a teacher guiding a disciple through prayer and visionary ascent. Their exchange moves through instruction, vision, a hymn and an oath of secrecy. The Prayer of Thanksgiving expresses gratitude for mind and divine knowledge. Their preservation at Nag Hammadi does not make all Hermetica Christian or uniformly Gnostic. The Hermetica are not part of the biblical canon of mainstream Jewish or Christian traditions.
The Renaissance revival and the Emerald Tablet
The Latin Asclepius remained available in medieval western Europe before the Renaissance recovery of the Greek Corpus Hermeticum. A Greek manuscript reached Florence around 1460. Under Cosimo de' Medici's patronage, Marsilio Ficino completed a Latin translation of its first fourteen treatises in 1463. Many Renaissance readers understood Hermes as a sage preceding Greek philosophy. In 1614, Isaac Casaubon challenged the supposed extreme antiquity of the philosophical Hermetica through linguistic and historical arguments.
The Emerald Tablet has a separate history. A short work associated with Hermes and influential in alchemical traditions, it is first attested in Arabic works of the early Middle Ages, not in surviving ancient Greek Hermetica. Translations from Arabic brought it into Latin circulation in the twelfth century. The Kybalion belongs to another period again: published in 1908, it reflects modern New Thought ideas rather than constituting an ancient Hermetic text.
Where to go next
The guide to the Nag Hammadi library addresses the wider manuscript collection in which the Coptic Hermetic works survive. For the religious setting around those manuscripts, the guide to the gnostic tradition offers a related subject. These are connected areas of study, but the identity of a manuscript collection does not by itself establish a uniform religious identity for every work preserved within it.
The guide to the gnostic gospels concerns another part of that wider field: Nag Hammadi preserves separate gospels, dialogues, revelations and other writings rather than one continuous narrative. The edition on this site of each of three Hermetic writings, Asclepius, The Discourse on the Eighth and Ninth and The Prayer of Thanksgiving, offers a further route into this body of ancient religious and philosophical literature.
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Every book’s page plays the opening of its audiobook. Open Asclepius below and press play.
AsclepiusAttributed to Hermes TrismegistusHear a sample
The Discourse on the Eighth and NinthAttributed to Hermetic philosophersHear a sample
The Prayer of ThanksgivingAttributed to Hermes TrismegistusHear a sample
The Nag Hammadi ScripturesHear a sample
Questions about the Hermetica
Who was Hermes Trismegistus?
Hermes Trismegistus is a divine teaching figure combining the Greek Hermes with the Egyptian Thoth, not a historical author with a recoverable biography. His epithet means thrice-greatest. Writings attributed to him draw together Egyptian religious traditions and Greek philosophical ideas; the attribution does not mean that one person wrote them all.
What is the Hermetica?
The Hermetica are writings attributed to Hermes Trismegistus. Their philosophical and religious works include the Corpus Hermeticum, Asclepius and Hermetic writings preserved at Nag Hammadi. Scholars distinguish these from technical works on astrology, alchemy and magic. The principal philosophical writings are usually placed in Roman Egypt during the first three centuries AD.
What is the Emerald Tablet?
The Emerald Tablet is a short work associated with Hermes Trismegistus that became influential in alchemical traditions. Its earliest known attestations occur in early medieval Arabic works, rather than surviving ancient Greek Hermetica. It entered Latin circulation through translations from Arabic in the twelfth century, giving it a distinct transmission history.
Is the Kybalion an ancient text?
No. The Kybalion was published in 1908 and reflects modern New Thought ideas rather than constituting an ancient Hermetic text. It belongs to a different historical setting from the philosophical Hermetica of Roman Egypt. Its date and intellectual background distinguish it from the Corpus Hermeticum and the other ancient writings.
What does 'as above, so below' mean?
The phrase cannot serve as a precise summary of all Hermetic teaching. The philosophical Hermetica do not present one uniform account of the material world. Their concerns include divine mind, humanity's spiritual capacities and knowledge of God; some celebrate the cosmos as divine creation. Knowledge of God and knowledge of oneself are often connected paths toward spiritual transformation in these writings.
