Heraclitus was an ancient Greek pre-Socratic philosopher from the city of Ephesus, which was then part of the Persian Empire.
Theater in Ephesus on the coast of Asia Minor, birthplace of Heraclitus
A modern reconstruction of the Ephesian Temple of Artemis, located in modern Istanbul. According to Diogenes Laertius, Heraclitus deposited his book in the temple.
Heraclitus's writing style has been compared to a sibyl, as depicted here by Domenichino.
Thales of Miletus was an Ancient Greek pre-Socratic philosopher from Miletus in Ionia, Asia Minor. Thales was one of the Seven Sages, founding figures of Ancient Greece.
The Ionic Stoa on the Sacred Way in Miletus.
Thales may have been educated in Egypt.
Thales depicted at the Baths of the Seven Sages.