Mystical systems
Timaeus
Direct answer
Timaeus: The Timaeus is a dialogue by Plato, written about 360 BCE, in which a craftsman god builds the cosmos by number and proportion and gives each element the shape of a regular solid.
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At a glance
- Also called
- plato demiurge
- Found in
- Mystical Systems
- Related
- Platonic Solids, Sacred Geometry, Tetractys, Quadrivium
The Timaeus is a dialogue by Plato, written about 360 BCE, in which a craftsman god builds the cosmos by number and proportion and gives each element the shape of a regular solid.
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What is the Timaeus about?
The Timaeus is one of Plato's late dialogues. Its main speaker, Timaeus of Locri, gives what he calls a likely account of how the world was made. A divine craftsman, the demiurge, looks to an eternal pattern and brings order to matter. He makes a soul for the world by dividing a mixture according to musical ratios, and he builds the bodies of fire, air, water and earth from triangles, as four regular solids.
The dialogue also holds the earliest telling of the story of Atlantis, continued in the Critias. For much of the Middle Ages it was the only work of Plato that Latin readers had, in the partial translation of Calcidius, and it shaped how Christian, Jewish and Muslim thinkers pictured creation.
On the tree of the hidden arts: Sacred geometry.
What sets Timaeus apart
Among Plato's dialogues it stands alone in being almost wholly a single speech, and in being about nature and not about how to live. The speaker insists more than once that his account is only likely, since the world of change allows no certain knowledge. Its maker does not create from nothing: he persuades a disorderly material to take the best form it can. And its smallest building blocks are not the solids but two kinds of right-angled triangle, from which the faces are put together.
- Written: about 360 BCE, among the late dialogues
- Main speaker: Timaeus of Locri, a Pythagorean of southern Italy, perhaps invented
- Maker: the demiurge, Greek for craftsman
- Elements: fire, air, water and earth as tetrahedron, octahedron, icosahedron and cube
- Latin version: Calcidius, fourth century CE, covering about the first half
- Sequel: the Critias, which carries on the Atlantis story and breaks off
Often mistaken for something else: The demiurge of the Timaeus is a good craftsman ordering matter; the demiurge of the later Gnostic writings is an ignorant or hostile maker, a different figure under the same name.
The story behind Timaeus
Plato wrote it about 360 BCE. Calcidius translated the first part into Latin with a commentary in the fourth century CE, and that version was read in the cathedral schools, above all at Chartres in the twelfth century. Marsilio Ficino put the whole of it into Latin in the fifteenth century. Johannes Kepler and, in the twentieth century, Werner Heisenberg both wrote of what they owed to it.
Why Timaeus matters
Nearly every later meaning given to the regular solids, and the idea of a cosmos built by number, goes back to this one book.
How to read Timaeus
Historians read it to see where sacred geometry begins; Plato himself has his speaker call the account likely and not certain.
Timaeus in practice: an example
A reader meeting the claim that the cube is the solid of earth can trace it straight back to one passage of the Timaeus.
Where readings of Timaeus go wrong
Timaeus is a philosophical story offered as likely, not a revelation and not physics, and Plato says as much.
Sources and editorial method
This entry summarizes the tradition in the Almanac's own words; where no source is listed, it is an editorial summary rather than a primary text, and symbolic readings are named as the tradition's, not as fact.
- Source
- The Great Almanac Dictionary
- Category
- Mystical Systems
- Aliases
- plato's timaeus, timaeus dialogue, timaeus and critias, plato demiurge
- Last updated
- 2026-09-26
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Common questions
What is the Timaeus about?
It is an account of how the cosmos was made: a craftsman god orders matter after an eternal pattern, gives the world a soul built on musical ratios, and forms the elements as regular solids.
Who is the demiurge in the Timaeus?
Demiurge is Greek for craftsman. In the dialogue he is a good maker who brings order to matter that was already there. He is not the hostile maker of the later Gnostic writings.
Is Atlantis in the Timaeus?
Yes. The story of Atlantis is first told near the start of the Timaeus and is continued in the Critias, which breaks off unfinished. No earlier source mentions it.
