Nothing is, everything is becoming.
Heraclitus 540-480 B.C. Heraclitus lived in the town of Ephesus, in Ionia, just north of Miletus. Heraclitus wrote in short, aphoristic sentences, many of which were purposely confounding. About one hundred thirty fragments of his cryptic prose have survived. These three philosophers, at Thales' lead, attempted to explain the world around them in terms of one underlying stuff. With these monist attempts, however, questions began to arise.