# The Lives and Opinions of Eminent Philosophers — Chapters explained

> Chapter companions for The Lives and Opinions of Eminent Philosophers by Diogenes Laërtius.

- [The Lives and Opinions of Eminent Philosophers](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/the-lives-and-opinions-of-eminent-philosophers.md): This chapter provides an overview of the lives, teachings, and successions of eminent Greek philosophers, covering figures from the Ionian and Italian schools, including Thales, Pythagoras, Socrates, Plato, and others, w
- [Book I: The Origins and Divisions of Philosophy](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/book-i.md): This chapter introduces the various schools of philosophy, their founders, and the divisions of philosophy into natural, ethical, and dialectic branches. It also provides a detailed account of Thales and Solon, including
- [Thales](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/thales.md): This chapter introduces Thales of Miletus, often regarded as the first philosopher and one of the Seven Sages. It covers his lineage, his pioneering work in astronomy and geometry, his political wisdom in advising Miletu
- [Solon](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/solon.md): This chapter details the life and reforms of Solon, the Athenian lawgiver. It covers his introduction of debt relief (the seisachtheia), his recapture of Salamis through a ruse of feigned madness, his refusal to become t
- [Chilo](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/chilo.md): This chapter details the life, sayings, and death of Chilo, a Lacedaemonian sage and one of the Seven Sages. It recounts his political reforms as ephor, his aphorisms on ethics and self-control, his advice to Periander, 
- [Pittacus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/pittacus.md): This chapter details the life, deeds, and sayings of Pittacus of Mitylene, one of the Seven Sages. It covers his rise to power as a general and tyrant, his wise governance and resignation, his legal reforms (including do
- [Bias](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/bias.md): This chapter recounts the life, wisdom, and death of Bias of Priene, one of the Seven Sages. It highlights his acts of virtue, such as ransoming and educating captured maidens, his clever diplomacy with King Alyattes dur
- [Cleobulus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/cleobulus.md): This chapter details the life, sayings, and legacy of Cleobulus of Lindus, one of the Seven Sages. It covers his lineage, his studies in Egypt, his poetic and philosophical works, including the disputed epigram on Midas 
- [Periander](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/periander.md): This chapter details the life and tyranny of Periander of Corinth, a ruler of the Heraclid family. It recounts his rise to power, his violent acts including the killing of his wife Melissa and the burning of his concubin
- [Anacharsis, the Scythian](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/anacharsis-the-scythian.md): Anacharsis, a Scythian prince with a Greek mother, travels to Athens to learn Greek customs, becomes a close friend of Solon, and returns to Scythia where he is killed by his brother for attempting to reform Scythian tra
- [Myson](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/myson.md): This chapter recounts the life and character of Myson, one of the seven wise men, including his obscure origins, the Delphic oracle's pronouncement of his wisdom, his misanthropic habits, and his death at age ninety-seve
- [Epimenides](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/epimenides.md): This chapter recounts the life and legends of Epimenides, a Cretan philosopher and prophet from Gnossus. It describes his miraculous fifty-seven-year sleep in a cave, his purification of Athens during a plague, his long 
- [Pherecydes](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/pherecydes.md): This chapter recounts the life, teachings, and legendary deeds of Pherecydes of Syros, an early Greek philosopher and theologian. It describes his prophecies, his death by the 'lousy disease,' his relationship with Pytha
- [Book II](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/book-ii.md): This chapter covers the successors of Euclides and the Megaric school, including Eubulides, Alexinus, Euphantus, and Diodorus Cronus, along with their dialectical arguments. It then transitions to Aristippus of Cyrene, h
- [Anaximander](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/anaximander.md): Anaximander, a Milesian philosopher, posited the Infinite as the primary principle of all things, with the whole being unchangeable though parts change. He described a spherical Earth at the center, the moon's light as b
- [Anaximenes](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/anaximenes.md): Anaximenes, a Milesian pupil of Anaximander (and some say Parmenides), posited air and the Infinite as the principles of all things, and held that stars move around the earth. He wrote in pure Ionian dialect, lived durin
- [Anaxagoras](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/anaxagoras.md): Anaxagoras of Clazomenae, a pupil of Anaximenes, was the first philosopher to attribute mind (Nous) to matter, arranging the cosmos from primordial chaos. He renounced his wealth for natural philosophy, famously claiming
- [Archelaus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/archelaus.md): This chapter discusses Archelaus, a pupil of Anaxagoras and teacher of Socrates, who is credited with bringing natural philosophy from Ionia to Athens and bridging the transition to ethical philosophy. It outlines his th
- [Socrates](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/socrates.md): This chapter recounts the life, character, and death of Socrates, detailing his parentage, early influences (including Anaxagoras and Archelaus), his shift from natural philosophy to moral philosophy, his military servic
- [Xenophon](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/xenophon.md): This chapter details the life of Xenophon, an Athenian citizen and follower of Socrates. It covers his initial encounter with Socrates, his military expedition with Cyrus, his subsequent banishment from Athens, his life 
- [Aeschines](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/aeschines.md): This chapter details the life and works of Aeschines, a devoted follower of Socrates, his alleged plagiarism, his poverty, his time in Sicily with Dionysius, and his reputation as a skilled orator. It also lists the seve
- [Aristippus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/aristippus.md): This chapter focuses on Aristippus of Cyrene, a pupil of Socrates who became a Sophist and founded the Cyrenaic school of philosophy. It details his character, his interactions with Dionysius and Diogenes, and his hedoni
- [Phaedo](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/phaedo.md): This chapter recounts the life of Phaedo of Elis, a Eupatrid who was enslaved after the subjugation of his country and ransomed by Socrates at the urging of Alcibiades or Crito. After his liberation, Phaedo studied philo
- [Euclides](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/euclides.md): This chapter introduces Euclides of Megara, founder of the Megaric school, and traces his philosophical lineage and successors, including Eubulides, Alexinus, Euphantus, Diodorus Cronus, and Stilpo. It covers Euclides' t
- [Stilpo](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/stilpo.md): This chapter details the life, teachings, and character of Stilpo of Megara, a prominent philosopher of the Megaric school known for his rhetorical skill, acumen, and ability to attract disciples from other schools. It r
- [Crito](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/crito.md): This chapter introduces Crito, an Athenian who was a devoted friend and benefactor of Socrates, ensuring he never lacked necessities. Crito's sons were all pupils of Socrates. The chapter lists the titles of seventeen di
- [Simon](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/simon.md): Simon, an Athenian leather-cutter, recorded Socrates' conversations in his workshop, creating the first Socratic dialogues known as 'leathern dialogues.' He authored thirty-three dialogues on various topics and famously 
- [Glauco](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/glauco.md): This chapter provides a brief account of Glauco, an Athenian philosopher, listing the nine dialogues attributed to him that are considered genuine, while noting that thirty-two others circulating under his name are spuri
- [Simias](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/simias.md): This chapter introduces Simias of Thebes, a philosopher credited with twenty-three dialogues covering a wide range of topics including wisdom, music, philosophy, government, and the soul.
- [Cebes](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/cebes.md): A brief entry on Cebes of Thebes, noting that three dialogues are attributed to him: The Tablet, the Seventh, and the Phrynichus.
- [Menedemus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/menedemus.md): This chapter details the life, character, and philosophical practices of Menedemus of Eretria, a disciple of Phaedo and Stilpo who founded the Eretrian school. It covers his rigorous and severe nature, his contentious di
- [Book III: The Life, Will, and Legacy of Plato](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/book-iii.md): This chapter details the final affairs of Plato, including his will, the epigrams on his tomb, and a list of his disciples. It also discusses the nature of his dialogues, his travels to Sicily, his interactions with Dion
- [Plato](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/plato.md): This chapter recounts the life, travels, and philosophical contributions of Plato, including his three visits to Sicily, his interactions with Dionysius, his escape aided by Archytas, his refusal to engage in state polit
- [Book IV: The Successors of Plato](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/book-iv.md): This chapter covers the lives and teachings of Plato's successors, Speusippus and Xenocrates, as well as Polemo, highlighting their characters, philosophical contributions, and anecdotes that illustrate their virtues and
- [Speusippus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/speusippus.md): This chapter covers the life and character of Speusippus, Plato's nephew and successor as head of the Academy. It describes his eight-year leadership, his passionate and pleasure-seeking nature, his innovations in philos
- [Xenocrates](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/xenocrates.md): This chapter details the life and character of Xenocrates, a pupil of Plato known for his solemnity, continence, and incorruptibility. It recounts anecdotes illustrating his resistance to temptation, his trustworthiness,
- [Polemo](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/polemo.md): Polemo, son of Philostratus, was an Athenian who in his youth was extremely intemperate and profligate, but after hearing Xenocrates speak on temperance while drunk, he reformed and became a devoted philosopher, eventual
- [Crates](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/crates.md): This chapter discusses Crates, an Academic philosopher who was a pupil and successor of Polemo. It highlights their close friendship, shared tomb, and the epigram by Antagoras commemorating them. It also mentions Arcesil
- [Crantor](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/crantor.md): Crantor, a native of Soli, came to Athens and studied under Xenocrates alongside Polemo. He left behind 30,000 lines of writings, some attributed to Arcesilaus. He admired Polemo for his balanced speech, and during an il
- [Arcesilaus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/arcesilaus.md): This chapter details the life and philosophy of Arcesilaus, the founder of the Middle Academy, who pioneered suspension of judgment and arguing both sides of a question. It covers his education under various teachers, hi
- [Bion](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/bion.md): This chapter recounts the life, character, and philosophical journey of Bion of Borysthenes, including his humble and scandalous origins, his education under various philosophical schools (Academy, Cynics, Theodorean, Pe
- [Lacydes](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/lacydes.md): Lacydes of Cyrene, founder of the New Academy, succeeded Arcesilaus. Known for his gravity, industriousness, and sociable nature, he managed his household with a clever sealing trick that his servants eventually outwitte
- [Carneades](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/carneades.md): This chapter details the life and character of Carneades, the eminent Academic philosopher from Cyrene. It describes his deep study of Stoic works, especially those of Chrysippus, his focus on ethics over natural philoso
- [Clitomachus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/clitomachus.md): This chapter introduces Clitomachus, a Carthaginian philosopher originally named Asdrubal, who came to Athens at age forty, studied under Carneades, and succeeded him as head of the Academy. He wrote over four hundred bo
- [Book V](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/book-v.md): This chapter details the extensive catalog of writings by Theophrastus, followed by his will and the life of Demetrius of Phalerum, including his political career, fall from grace, and philosophical sayings.
- [Aristotle](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/aristotle.md): This chapter provides a comprehensive account of Aristotle's life, death, works, and philosophical doctrines. It includes details about his birth, his twenty-year association with Plato, his time at the court of Hermias,
- [Theophrastus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/theophrastus.md): This chapter details the life, character, and legacy of Theophrastus, the successor to Aristotle as head of the Peripatetic school. It covers his origins in Eresus, his education under Leucippus, Plato, and Aristotle, hi
- [Strato](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/strato.md): This chapter details the life, works, and will of Strato of Lampsacus, the second successor to Theophrastus as head of the Peripatetic school. Known as 'the Natural Philosopher,' he was renowned for his deep study of nat
- [Lycon](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/lycon.md): This chapter details the life, character, and will of Lycon, a Peripatetic philosopher known for his eloquence, educational methods, and devotion to physical fitness. It includes his sayings, his relationship with kings,
- [Demetrius](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/demetrius.md): This chapter details the life, political career, writings, and death of Demetrius of Phalerum, a Peripatetic philosopher and statesman who governed Athens for ten years, was honored with numerous statues, and later fell 
- [Heraclides](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/heraclides.md): This chapter details the life, works, and death of Heraclides of Pontus, a wealthy philosopher who studied under Speusippus, the Pythagoreans, Plato, and Aristotle. Known for his delicate attire and noble demeanor, he au
- [Book VI: The Cynics and the Rise of Stoicism](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/book-vi.md): This chapter explores the Cynic school of philosophy, its doctrines, and its key figures, particularly Antisthenes and Diogenes. It details the Cynic emphasis on virtue as the sole good, rejection of logic and natural ph
- [Antisthenes](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/antisthenes.md): This chapter details the life, teachings, and legacy of Antisthenes, the Athenian philosopher who became a pupil of Socrates and founded the Cynic school. It covers his background, his emphasis on virtue and labor, his s
- [Diogenes](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/diogenes.md): This chapter recounts the life, witty sayings, and philosophical stance of Diogenes of Sinope, the Cynic philosopher. It includes his sharp retorts to figures like Plato, Alexander the Great, and Anaximenes, his disdain 
- [Monimus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/monimus.md): Monimus, a Syracusan slave of a Corinthian money-changer, becomes a pupil of Diogenes after feigning madness to escape his master. He also follows Crates the Cynic and gains renown, even being mentioned by the comic poet
- [Onesicritus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/onesicritus.md): This chapter introduces Onesicritus, a disciple of Diogenes, and compares him to Xenophon in terms of their military expeditions and literary works. It also mentions other pupils of Diogenes, including Menander, Hegesaeu
- [Crates](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/crates.md): This chapter recounts the life and teachings of Crates of Thebes, a prominent Cynic philosopher who renounced his wealth for a life of poverty and philosophy. It details his eccentric behaviors, witty sayings, and intera
- [Metrocles](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/metrocles.md): Metrocles, brother of Hipparchia, initially studied under Theophrastus but fell into despair after a perceived disgrace during a lecture. Crates consoled him, convincing him that natural bodily functions are not shameful
- [Hipparchia](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/hipparchia.md): Hipparchia, sister of Metrocles and a native of Maronea, is so captivated by the doctrines and character of Crates that she rejects all wealthy suitors and insists on marrying him. Despite Crates' attempts to dissuade he
- [Menippus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/menippus.md): This chapter recounts the life of Menippus, a Cynic philosopher of Phoenician descent who was born a slave but later became wealthy through usury, only to lose everything and die by suicide. It also notes that his writin
- [Menedemus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/menedemus.md): This chapter describes Menedemus, a disciple of Colotes of Lampsacus, known for his extreme superstition and peculiar attire. It then discusses the common doctrines of the Cynics, including their rejection of logic and n
- [Book VII: The Stoic Doctrine of Virtue and Indifferents](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/book-vii.md): This chapter presents a detailed exposition of Stoic ethics, including the nature of virtue and vice, the classification of goods and indifferents, and the sufficiency of virtue for happiness. It contrasts Stoic views wi
- [Zeno](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/zeno.md): This chapter recounts the life and teachings of Zeno of Citium, the founder of the Stoic school. It describes his arrival in Athens, his teaching in the Painted Colonnade (Stoa), the high esteem in which the Athenians he
- [Ariston](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/ariston.md): This chapter focuses on Ariston the Bald of Chios, a Stoic philosopher who emphasized indifference to intermediate things between virtue and vice, rejected physics and logic in favor of ethics, and defined virtue as beha
- [Herillus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/herillus.md): This chapter discusses Herillus of Carthage, a philosopher who identified the chief good as knowledge and emphasized living according to knowledge without being misled by ignorance. It explores his views on the chief goo
- [Dionysius](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/dionysius.md): This chapter describes Dionysius, known as the Deserter, who asserted pleasure as the chief good due to his own painful eye condition. It details his education under various philosophers including Heraclides, Alexinus, M
- [Cleanthes](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/cleanthes.md): This chapter recounts the life and character of Cleanthes of Assos, a devoted pupil of Zeno who succeeded him as head of the Stoic school. Despite his poverty and slow intellect, Cleanthes was renowned for his extraordin
- [Sphaerus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/sphaerus.md): Sphaerus, a pupil of Cleanthes and Zeno, becomes a prominent Stoic philosopher and visits the court of Ptolemy Philopater in Alexandria. He engages in a philosophical debate about opinion and perception, cleverly disting
- [Chrysippus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/chrysippus.md): This chapter details the life, character, and prolific writings of Chrysippus, the Stoic philosopher who succeeded Cleanthes. It covers his intellectual acumen, his immense output of over 705 books, his dialectical skill
- [Book VIII: The Pythagorean and Promiscuous Philosophers](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/book-viii.md): This chapter explores the lives and teachings of Empedocles and Eudoxus, detailing their philosophical influences, contributions to natural philosophy, and their relationships with other thinkers such as Parmenides, Pyth
- [Pythagoras](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/pythagoras.md): This chapter covers the life, teachings, and legacy of Pythagoras, founder of the Italian school of philosophy. It details his supposed transmigrations of the soul, his travels to Egypt and Crete to learn sacred mysterie
- [Empedocles](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/empedocles.md): This chapter details the life, teachings, and legacy of Empedocles of Agrigentum. It covers his noble lineage, his education under Pythagoras and Parmenides, his political career, his reputation as a physician and magici
- [Epicharmus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/epicharmus.md): Epicharmus, a native of Cos and pupil of Pythagoras, was brought to Megara in Sicily as an infant and later moved to Syracuse. He was renowned for his wisdom, as reflected in the inscription on his statue. He wrote comme
- [Archytas](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/archytas.md): This chapter details the life and achievements of Archytas of Tarentum, a Pythagorean philosopher, general, and mathematician. It highlights his rescue of Plato from Dionysius, his unprecedented seven-term generalship, h
- [Alcmaeon](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/alcmaeon.md): Alcmaeon of Crotona, a pupil of Pythagoras, is noted for his medical writings and contributions to natural philosophy. He is considered the first to write a treatise on natural philosophy, arguing that the moon is eterna
- [Hippasus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/hippasus.md): A brief account of Hippasus of Metapontum, a Pythagorean philosopher who held that the universe is finite, in perpetual motion, and undergoes change at definite times. The chapter also notes that he left no writings and 
- [Philolaus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/philolaus.md): Philolaus, a Pythagorean from Crotona, was suspected of plotting tyranny and was killed by his fellow citizens. He was the first to write on natural philosophy among the Pythagoreans, teaching that everything is produced
- [Eudoxus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/eudoxus.md): This chapter recounts the life and achievements of Eudoxus of Cnidus, an astronomer, geometrician, physician, and lawgiver. It details his education under Archytas and Philistion, his association with Plato, his travels 
- [Book IX: The Skeptics and the Eleatic School](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/book-ix.md): This chapter covers the lives and doctrines of Xenophanes, Parmenides, Melissus, Zeno the Eleatic, Democritus, and Pyrrho, detailing their philosophical contributions, personal anecdotes, and the skeptical tradition that
- [Heraclitus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/heraclitus.md): This chapter details the life, character, and death of Heraclitus of Ephesus, a philosopher known for his arrogant and misanthropic nature. It recounts his disdain for other thinkers, his refusal to engage in politics, h
- [Xenophanes](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/xenophanes.md): Xenophanes of Colophon, a poet and philosopher, was banished from his homeland and lived in Sicily. He criticized Homer and Hesiod for their depictions of the gods, argued against Thales, Pythagoras, and Epimenides, and 
- [Parmenides](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/parmenides.md): This chapter details the life and teachings of Parmenides, a philosopher from Velia, pupil of Xenophanes and Anaximander, who embraced the tranquil life of philosophy under the influence of Aminias the Pythagorean. He is
- [Melissus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/melissus.md): Melissus of Samos, a pupil of Parmenides and conversant with Heraclitus, was a respected statesman and admiral. He taught that the universe is infinite, unchanging, immovable, and one, denying real motion and asserting t
- [Zeno, the Eleatic](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/zeno-the-eleatic.md): This chapter details the life, character, and philosophical contributions of Zeno of Elea, a pupil of Parmenides known for his invention of dialectics, his political courage in opposing tyranny, and his doctrines on mult
- [Leucippus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/leucippus.md): This chapter introduces Leucippus, the first philosopher to propose atoms as fundamental principles. It describes his doctrines on the infinite universe, the void, the formation of worlds through vortices, and the nature
- [Democritus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/democritus.md): This chapter details the life, travels, teachings, and legacy of Democritus of Abdera, the atomist philosopher. It covers his education under Leucippus and possibly Anaxagoras, his extensive travels to Egypt, Persia, and
- [Protagoras](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/protagoras.md): This chapter details the life, teachings, and legacy of Protagoras of Abdera, a pre-Socratic philosopher known for his relativistic doctrine that 'man is the measure of all things,' his agnosticism regarding the gods, hi
- [Diogenes of Apollonia](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/diogenes-of-apollonia.md): This chapter introduces Diogenes of Apollonia, a natural philosopher and pupil of Anaximenes, contemporary of Anaxagoras, who faced unpopularity and danger in Athens. His doctrines include air as the primary element, inf
- [Anaxarchus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/anaxarchus.md): Anaxarchus of Abdera, a philosopher of the school of Democritus and companion of Alexander the Great, is known for his fearless defiance against the tyrant Nicocreon, who brutally executed him by pounding in a mortar. Hi
- [Pyrrho](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/pyrrho.md): This chapter details the life and philosophy of Pyrrho of Elis, the founder of Skepticism. It describes his early life as a painter, his travels with Anaxarchus to India where he encountered the Gymnosophists and Magi, a
- [Timon](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/timon.md): This chapter details the life and character of Timon of Phlius, the Skeptic philosopher. It covers his early studies in dancing, his philosophical training under Stilpo and Pyrrho, his career as a Sophist, his prolific l
- [Book X: Epicurus and the Pursuit of Pleasure](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/book-x.md): This chapter presents the life, teachings, and will of Epicurus, detailing his philosophy of pleasure as the chief good, the primacy of prudence, the nature of the gods, the insignificance of death, and the relationship 
- [Epicurus](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/epicurus.md): This chapter details the life, doctrines, and death of Epicurus, including his hedonistic ethics, his views on pleasure and pain, the role of virtue, his will, and his advice on living a happy life through philosophy.
- [Endnotes](https://www.betterreads.online/discover/the_lives_and_opinions_of_eminent_philosophers_se/chapters/endnotes.md): This chapter provides extensive endnotes and references for the main text, including discussions on Zoroaster, Persian theology, Greek lawgivers, and various philosophical doctrines. It also includes textual clarificatio

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