Plutarch quotes - page 12
about Archimedes ... being perpetually charmed by his familiar siren, that is, by his geometry, he neglected to eat and drink and took no care of his person that he was often carried by force to the baths, and when there he would trace geometrical figures in the ashes of the fire, and with his finger draw lines upon his body when it was anointed with oil, being in a state of great ecstasy and divinely possessed by his science.
Plutarch
This excerpt is presented as reproduced by Copernicus in the preface to De Revolutionibus 'Some think that the earth remains at rest. But Philolaus the Pythagorean believes that, like the sun and moon, it revolves around the fire in an oblique circle. Heraclides of Pontus and Ecphantus the Pythagorean make the earth move, not in a progressive motion, but like a wheel in rotation from west to east around its own center.'
Plutarch