The Lives and Opinions of Eminent Philosophers · Characters
Character guide
Key figures in The Lives and Opinions of Eminent Philosophers by Diogenes Laërtius.
Plato
major
Also known as Book III Plato, The solemn Plato
Founder of the Academy and central figure in Greek philosophy, extensively quoted and discussed.
Socrates
major
Athenian philosopher whose teachings and method are foundational to Western thought.
Diogenes of Sinope
major
Also known as The wise Diogenes, O Diogenes, Diogenes of Apollonia
Cynic philosopher known for his ascetic lifestyle and sharp wit.
Zeno of Citium
major
Also known as Zeno, Democritus, Parmenides, Zeno the Eleatic
Founder of the Stoic school of philosophy.
Epicurus
major
Also known as Book X Epicurus
Founder of Epicurean philosophy, emphasizing pleasure and atomism.
Aristotle
major
Also known as the Stagirite, Aristotle the Stagirite
Philosopher and polymath, student of Plato and tutor of Alexander the Great.
Pythagoras
major
Also known as wise Pythagoras, Pherecydes of Pythagoras
Pre-Socratic philosopher and mathematician, founder of Pythagoreanism.
Thales
major
Also known as O Thales
Pre-Socratic philosopher from Miletus, considered one of the Seven Sages.
Heraclitus
supporting
Also known as Heraclitus of Ephesus, cuckoo Heraclitus
Pre-Socratic philosopher known for his doctrine of change and flux.
Democritus
supporting
Also known as he of Democritus
Pre-Socratic philosopher who developed the atomic theory of the universe.
Antisthenes
supporting
Also known as Book VI Antisthenes, Cynics
Founder of the Cynic school and a student of Socrates.
Chrysippus
supporting
Also known as Chrysippus of Cnidos
Stoic philosopher, third head of the Stoic school.
Empedocles
supporting
Also known as the wise Empedocles
Pre-Socratic philosopher who proposed the four classical elements.
Xenophon
supporting
Athenian historian and soldier, student of Socrates.
Solon
supporting
Also known as wise Solon, Solon the Athenian
Athenian statesman and lawgiver, one of the Seven Sages.
Pyrrho
supporting
Also known as O Pyrrho
Founder of Pyrrhonism, the school of philosophical skepticism.
Anaxagoras
supporting
Also known as wise Anaxagoras
Pre-Socratic philosopher who introduced the concept of Nous (Mind).
Protagoras
supporting
Sophist philosopher known for 'Man is the measure of all things.'
Parmenides
supporting
Also known as wise Parmenides, Parmenides of Zeno the Eleatic
Pre-Socratic philosopher from Elea, known for his ontology.
Cleanthes
supporting
Also known as Cleanthes of Assos
Stoic philosopher who succeeded Zeno as head of the school.
Arcesilaus
supporting
Also known as O wise Arcesilaus, Arcesilaus the Pitanaean
Greek philosopher who became head of the Platonic Academy.
Carneades
supporting
Head of the Platonic Academy, known for his skeptical arguments.
Theophrastus
supporting
Also known as Strato Theophrastus
Peripatetic philosopher who succeeded Aristotle as head of the Lyceum.
Strato of Lampsacus
supporting
Also known as Strato
Peripatetic philosopher and third head of the Lyceum.
Xenocrates
supporting
Platonic philosopher and third head of the Academy.
Polemo
supporting
Also known as Crates of Polemo
Platonic philosopher and head of the Academy.
Crates of Thebes
supporting
Also known as the Cynic Crates, Crates the Cynic
Cynic philosopher who gave away his wealth to live in poverty.
Bion of Borysthenes
supporting
Also known as Bion the Borysthenite
Cynic and later Cyrenaic philosopher known for his witty sayings.
Menedemus of Eretria
supporting
Also known as Eretria
Greek philosopher and founder of the Eretrian school.
Stilpo
supporting
Also known as Stilpo the Megarian, wise Stilpo
Megarian philosopher known for his logical paradoxes.
Euclides of Megara
supporting
Also known as the quarrelsome Euclides
Founder of the Megarian school of philosophy.
Aristippus of Cyrene
supporting
Also known as Aristippus the Cyrenian, Cyrene
Founder of the Cyrenaic school of philosophy, student of Socrates.
Anaximenes
supporting
Pre-Socratic philosopher from Miletus who believed air was the arche.
Anaximander
supporting
Pre-Socratic philosopher who proposed the apeiron as the first principle.
Xenophanes
supporting
Also known as Xenophanes the Colophonian
Pre-Socratic philosopher and poet, critic of anthropomorphic gods.
Melissus of Samos
supporting
Pre-Socratic philosopher and a key figure in the Eleatic school.
Leucippus
supporting
Also known as he of Leucippus
Pre-Socratic philosopher credited with founding atomism.
Diogenes of Apollonia
supporting
Pre-Socratic philosopher who believed air was the primary substance.
Anaxarchus
supporting
Greek philosopher of the school of Democritus, known for his equanimity.
Timon of Phlius
supporting
Also known as Timon Apollonides, Timon the Phliasian
Skeptic philosopher and poet, student of Pyrrho.
Heraclides Ponticus
supporting
Also known as Heraclides, Ponticus
Platonic philosopher and astronomer who proposed a heliocentric model.
Demetrius of Phalerum
supporting
Also known as Demetrius Phalereus, Phalereus
Athenian orator and statesman, later a librarian at Alexandria.
Lycon
supporting
Peripatetic philosopher who succeeded Strato as head of the Lyceum.
Speusippus
supporting
Also known as the Athenian, Speusippus the Athenian
Platonic philosopher who succeeded Plato as head of the Academy.
Crantor
supporting
Also known as O Crantor
Platonic philosopher known for his commentary on Plato's Timaeus.
Lacydes
supporting
Platonic philosopher who became head of the Academy.
Clitomachus
supporting
Carthaginian philosopher who became head of the Platonic Academy.
Ariston of Chios
supporting
Also known as Ariston, Chios
Stoic philosopher who studied under Zeno.
Herillus
supporting
Stoic philosopher who studied under Zeno.
Dionysius of Heraclea
supporting
Also known as Dionysius the Carthaginian
Stoic philosopher who later became a Cyrenaic.
Sphaerus
supporting
Also known as Sphaerus the Stoic
Stoic philosopher, student of Zeno and Cleanthes.
Epicharmus
supporting
Also known as Epicharmus of Cos
Greek comic playwright and philosopher from Cos.
Archytas
supporting
Also known as Archytas the Pythagorean, Tender Archytas
Pythagorean philosopher, mathematician, and statesman.
Alcmaeon of Croton
supporting
Pre-Socratic philosopher and medical theorist.
Hippasus of Metapontum
supporting
Pythagorean philosopher credited with discovering irrational numbers.
Philolaus
supporting
Pythagorean philosopher who proposed a central fire in the universe.
Eudoxus of Cnidus
supporting
Also known as the Cnidean Eudoxus
Greek astronomer, mathematician, and student of Plato.
Pittacus of Mytilene
supporting
Also known as wise Pittacus, old Pittacus
One of the Seven Sages of Greece, a statesman from Mytilene.
Bias of Priene
supporting
Also known as Bias with Salarus of Priene
One of the Seven Sages of Greece, known for his legal maxims.
Cleobulus of Lindos
supporting
Also known as Chilo the Lacedaemonian
One of the Seven Sages of Greece, a poet and tyrant of Lindos.
Periander of Corinth
supporting
Also known as the Corinthian Periander
One of the Seven Sages of Greece, a tyrant of Corinth.
Anacharsis
supporting
Also known as Anacharsis the Scythian, the Scythian Anacharsis
Scythian philosopher who traveled to Greece and was known for his wisdom.
Myson of Chenae
supporting
Also known as Myson the Chenean
One of the Seven Sages of Greece, known for his laconic wisdom.
Epimenides of Crete
supporting
Also known as Epimenides the Cretan
Cretan philosopher and prophet, known for the paradox of the liar.
Pherecydes of Syros
supporting
Also known as Pherecydes of Pythagoras
Pre-Socratic philosopher and teacher of Pythagoras.
Archelaus of Athens
supporting
Also known as Archelaus the Macedonian
Pre-Socratic philosopher and student of Anaxagoras, teacher of Socrates.
Aeschines of Sphettus
supporting
Socratic philosopher and writer of dialogues.
Phaedo of Elis
supporting
Also known as Phaedo the Elean
Greek philosopher and founder of the Elean school, student of Socrates.
Crito of Alopece
supporting
Wealthy Athenian friend and student of Socrates.
Simon the Shoemaker
supporting
Athenian shoemaker and friend of Socrates, known for his dialogues.
Glauco
supporting
Athenian philosopher and student of Socrates.
Simias of Thebes
supporting
Theban philosopher and student of Socrates.
Cebes of Thebes
supporting
Theban philosopher and student of Socrates.
Monimus
supporting
Cynic philosopher who studied under Diogenes of Sinope.
Onesicritus
supporting
Cynic philosopher and historian who accompanied Alexander the Great.
Metrocles
supporting
Also known as Metrocles the Cynic
Cynic philosopher who studied under Crates.
Hipparchia of Maroneia
supporting
Cynic philosopher who married Crates and lived in poverty.
Menippus of Gadara
supporting
Also known as Menippus of Sinope
Cynic philosopher and satirist, known for his seriocomic style.
Chilo of Sparta
minor
Also known as Chilo the Lacedaemonian
One of the Seven Sages of Greece, a Spartan lawgiver.
Antigonus of Carystus
minor
Also known as king Antigonus, Carystus
Greek writer and biographer of philosophers.
Apollodorus of Athens
minor
Also known as Apollodorus of Cyzicus
Greek scholar and writer, known for his chronicle of philosophers.
Phavorinus
minor
Greek philosopher and sophist, known for his eclectic works.
Hermippus of Smyrna
minor
Greek biographer and historian of philosophy.
Demetrius of Magnesia
minor
Also known as Demetrius the Magnesian
Greek grammarian and biographer of philosophers.