PhilosophersThalès de Milet
Thalès de Milet
The principle of all things is water.
PresocraticsVIIe-VIe s. av. J.-C. GreeceFirst "natural philosopher" according to AristotleOne of the Seven SagesAstronomer and adviserKnown only through witnesses
VIe s. av.
Testimonies about Thales (Diels-Kranz 11) essential
This is not a book by Thales. These are passages from Herodotus, Plato, Aristotle and Diogenes Laertius gathered by the German editors Diels and Kranz under number 11. Each excerpt on this page names who reports it.
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Nautical Astronomy
An astronomy poem attributed to him. Diogenes Laertius already notes that it is said to be by Phocus of Samos, and modern editors place it among falsely attributed texts.
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On the Solstice, On the Equinox
Two treatises that "some" attribute to him, according to Diogenes Laertius (eight centuries later). Nothing survives, and other sources say he wrote nothing.