- Acted: 5th Century BC
- Lived: 5th Century BC
- School: Sophist
- Main Interests: Ethics, Politics
- Influences:
- Location: Paros
School: sophist
- Acted: 4th Century BC
- Lived: 484-376 BC
- School: Sophist
- Main Interests: Ontology, Epistemology, Rhetoric, Moral relativism
- Influences: Empedocles, Parmenides, Zeno of Elea
- Location: Lentini
- Acted: 4th Century BC
- Lived: 465-395 BC
- School: Sophist
- Main Interests: Linguistics, Ethics, Religion
- Influences: -
- Location: Kea
- Acted: 5th Century BC
- Lived: 490-420 BC
- School: Sophist
- Main Interests: Relativism, Agnosticism, Ethics
- Influences: Democritus, Parmenides
- Location: Abdera