The Corpus Hermeticum
A collection of philosophical dialogues attributed to Hermes Trismegistus. Translated into Latin by Ficino in Florence in 1463, it helped ignite the Hermetic Renaissance.
Read the article →Ancient wisdom · Secret tradition
Hermetism
The secret philosophy connecting ancient Egypt, Greece, the Renaissance and the modern world
Hermetism is one of humanity’s great wisdom traditions. Born in ancient Egypt, carried through Greece, the Arab world and the Italian Renaissance, it makes a simple and dizzying claim: the universe follows laws, and those laws can be approached by anyone who learns how to read them.
Attributed to Hermes Trismegistus — a mythical figure, half Egyptian god and half Greek sage — this body of texts and practices inspired alchemists, philosophers, scientists and mystics for two thousand years. Its founding principles still resonate in modern psychology, quantum physics and contemporary spiritual traditions.
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Origins and Hermes Trismegistus
Hermes Trismegistus — “Hermes the thrice-great” — is a syncretic figure born from the union of the Greek god Hermes, messenger of the gods and guide of souls, and the Egyptian god Thoth, master of knowledge and inventor of writing and magic. Greeks living in Egypt after Alexander naturally identified the two deities, and from that union a new wisdom emerged.
The Hermetic tradition claims that these texts reach back to a primordial revelation, earlier than Moses — hence the phrase prisca theologia, or original theology. In reality, historians date the writing of the Corpus Hermeticum to the first through third centuries CE, probably in Alexandria, a unique meeting place for Egyptian, Greek and Jewish wisdom.
Alexandria was far more than a port. Founded by Alexander the Great in 331 BCE, it was where the world met: its Great Library gathered texts from dozens of civilisations, while Platonist philosophers, rabbis, Egyptian priests, Babylonian astrologers and Greek doctors argued in its streets. Hermetism emerged from that ferment, attempting to weave disparate threads into one coherent vision of the universe.
What is striking about Hermes Trismegistus is the power of his persistence. For fifteen centuries, thinkers believed him to be a real sage, a prophet older than Moses. When Isaac Casaubon demonstrated in 1614 that the texts were much later than believed, the shock was immense — yet Hermeticism did not disappear. Something in the texts survived their historical attribution.
The word “hermetic”, as in “hermetically sealed”, comes directly from Hermes Trismegistus. The alchemist who sealed a vessel used a technique supposedly invented by the god: the Hermetic seal.
The great Hermetic texts
The Hermetic tradition rests on foundational texts written over several centuries, found, lost, translated and translated again over time. Each carries a different facet of the same vision of the world.
The Emerald Tablet
The shortest and most famous text: “That which is above is like that which is below.” A foundation of alchemy and a keystone of Hermetic thought.
Read the article →The Kybalion
Published in 1908 under the name “Three Initiates”, this book made Hermetism accessible in the twentieth century through seven clearly explained universal principles.
Read the article →The seven Hermetic laws
Mentalism, correspondence, vibration, polarity, rhythm, cause and effect, and gender: seven principles said to govern reality from the cosmos to the human soul.
Read the article →The transmission of these texts is remarkable for its mixture of fragility and resilience. The Corpus Hermeticum nearly disappeared several times through invasions, library fires and religious persecution. The Arab world — especially translators in Baghdad in the eighth and ninth centuries — preserved essential parts of the Greek inheritance before it returned to Europe through medieval and Renaissance translations.
When Cosimo de’ Medici received a Greek manuscript of the Corpus Hermeticum in 1460, he asked Marsilio Ficino to interrupt his translation of Plato and work on it first. In two years Ficino had translated the fifteen Hermetic treatises. Their publication in 1471 became one of the founding moments of Western esoteric thought.
The seven Hermetic laws — an overview
The Kybalion and the Hermetic tradition identify seven fundamental principles governing reality. They are not moral laws, but laws of how the universe operates — like gravity, but for mind and energy.
I. Mentalism
“All is mind; the Universe is mental.” Reality proceeds from a universal Consciousness.
II. Correspondence
“As above, so below.” The different planes of existence reflect one another.
III. Vibration
“Nothing rests; everything moves; everything vibrates.” The difference between matter, energy and thought is one of frequency.
IV. Polarity
“Everything is dual; everything has poles.” Heat and cold, light and shadow, love and hate are ends of the same thing.
V. Rhythm
“Everything flows and ebbs.” Tides, seasons and life cycles follow a universal pendulum.
VI. Cause and effect
“Every cause has its effect; every effect has its cause.” Chance is only a cause we have not recognised.
VII. Gender
“Gender is in everything.” Active and receptive principles exist on every level of existence.
These seven laws are not presented as dogmas to believe, but as working hypotheses to test. Hermetism invites observation: does correspondence show up in my life? Does rhythm appear where I am trying to force things? This experimental relationship with truth is one of the tradition’s most distinctive marks: it asks not for blind faith, but for attentive observation.
Kybalion vs. Corpus Hermeticum: the seven laws as formulated in the Kybalion (1908) are a modern synthesis with no word-for-word equivalent in the ancient texts. The Corpus Hermeticum is more philosophical and dialogical, less practical. Both are worth reading, as long as they are not confused.
Influence on history
Hermetism exerted a discreet but profound influence on the history of Western thought. Rediscovered in Florence in 1463 through Cosimo de’ Medici and translated by Marsilio Ficino, Hermetic texts fed the Renaissance directly: Pico della Mirandola, Botticelli and Leonardo da Vinci all moved within a vision of a living universe animated by a hidden intelligence.
Isaac Newton himself studied Hermetic alchemy and the Emerald Tablet intensely. His unpublished alchemical writings are larger in volume than his work on physics. In the twentieth century Carl Jung rediscovered Hermetism and saw alchemy as a symbolic representation of unconscious processes, a foundation of analytical psychology.
Hermes Trismegistus appears on the mosaic floor of Siena Cathedral, alongside Moses and Plato — a sign that the Renaissance treated him as an equal to the great prophets.
Hermetic influence on the history of science is often underestimated. Alchemy developed laboratory techniques, experimental procedures and chemical terminology that helped form the foundations of modern chemistry. Paracelsus, both a great Hermetic alchemist and a founder of pharmacology, shows how naturally those identities could coexist in his time.
Alchemy, Rosicrucians and Freemasonry
Hermetism produced an extraordinarily varied lineage. Alchemy is its best-known expression: the transformation of matter, from lead into gold, was also for its deepest practitioners a metaphor for inner transformation. Turning the lead of ignorance into the gold of wisdom was the Magnum Opus, the Great Work.
In the seventeenth century, the Rosicrucian manifestos of 1614–1615 announced a secret fraternity preserving Hermetic wisdom for the renewal of the world. Whether such a fraternity really existed remains historically debatable, but the manifestos had enormous impact, triggering scores of writings and an esoteric vogue across Europe.
Speculative Freemasonry, which appeared in the eighteenth century, inherited many Hermetic symbols and rituals: the square and compass, the rough ashlar as an image of self-transformation, and the quest for Light as Hermetic gnosis. These symbols still adorn Masonic temples around the world.
Hermetism today
The Hermetic tradition remains alive in many forms. Twentieth-century New Age movements rephrased its principles as the “law of attraction” and “manifestation”. The Kybalion, published in 1908, continues to sell hundreds of thousands of copies. Quiet Hermetic study circles exist in most major cities.
Academically, Hermetism has been seriously reassessed in recent decades. Francis Yates’s Giordano Bruno and the Hermetic Tradition (1964) showed the importance of Hermetic thought in the birth of modern science. Historians of religion such as Antoine Faivre established Hermetism as a legitimate field of thought worthy of university study.
What stands out is its resilience. Forbidden, burned, forgotten and rediscovered, it keeps returning because it answers a question every generation asks: is there a hidden logic behind the chaos of existence? Hermetism says yes — and offers tools for looking for it.
How should we approach Hermetism today? There is no required hierarchy or formal initiation. The most honest path is to begin with the texts, observe the seven laws in your own life, and practise what the Sphinx motto calls “to know, to will, to dare and to be silent”. Hermetism is as much a discipline of attention as it is a philosophy.
Frequently asked questions
Is Hermetism a religion?
No. It is a philosophy and a tradition of practical wisdom. It has no personal god, compulsory moral dogma or organised worship, and can be studied alongside any religion.
Did Hermes Trismegistus really exist?
Not as a historical person. He is a mythical figure, a collective pseudonym under which Alexandrian sages gathered their writings between the first and third centuries. Isaac Casaubon demonstrated this philologically in 1614 without erasing the texts’ philosophical depth.
What is the difference between Hermetism and occultism?
Hermetism is the philosophy; occultism is the set of practices — magic, alchemy, Kabbalah and astrology — that may be connected to it. Philosophical Hermetism can be studied intellectually without any esoteric practice.
Which Hermetic text should I read first?
The Emerald Tablet for its poetic concision, the Kybalion for a structured introduction to the principles, and the Corpus Hermeticum for the earliest sources — although it is more demanding and written as philosophical dialogue.
Did Hermetism influence modern science?
Indirectly, yes. Isaac Newton wrote more on Hermetic alchemy than on physics. Hermetic alchemy developed laboratory techniques that anticipated chemistry. Carl Jung used alchemy as a symbolic language for mapping unconscious processes.
How can I practise Hermetism today?
No organisation or compulsory ritual is required. Study the foundational texts, observe the seven laws in daily experience, practise contemplation and inner silence, and cultivate gnosis — lived knowledge rather than knowledge that stays intellectual.
About this page. Hermetism is a living tradition practised today. We discuss it from the outside, as cultural and historical material: we do not teach it, speak for any community, or invite anyone to adopt or leave it. Errors and simplifications are ours — write to us if something feels unfair.