• Jan 21, 2026 Ancient Greek Philosophy From The Presocratics To The Hellenistic Philosophers ents 2 of the universe posing questions about its origins composition and underlying principles Thales of Miletus c 624 546 BC Often regarded as the first philosopher Thales proposed that water was the arche fundamental principle of everything Anaximander c 610 546 BC He introdu BY Dianne Beier