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

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  1. Chapter 1

    The Lives and Opinions of Eminent Philosophers

    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, with anecdotes about their character, wisdom, and interactions.

  2. Chapter 2

    Book I: The Origins and Divisions of Philosophy

    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 Solon's political reforms, his recapture of Salamis, his encounter with Croesus, and his letters to Periander and Epimenides.

  3. Chapter 3

    Thales

    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 Miletus against an alliance with Croesus, his ethical aphorisms, and his natural philosophy positing water as the fundamental principle. The chapter also discusses the varying accounts of his life, writings, and death, as well as the broader traditions surrounding the Seven Sages.

  4. Chapter 4

    Solon

    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 tyrant despite popular support, his warnings against Pisistratus, and his subsequent voluntary exile. The chapter also includes his letters, poems, maxims, and his famous encounter with Croesus regarding happiness.

  5. Chapter 5

    Chilo

    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, his famous saying 'Suretyship, and then destruction,' and his death from joy at his son's Olympic victory.

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  1. Chapter 6Pittacus
  2. Chapter 7Bias
  3. Chapter 8Cleobulus
  4. Chapter 9Periander
  5. Chapter 10Anacharsis, the Scythian
  6. Chapter 11Myson
  7. Chapter 12Epimenides
  8. Chapter 13Pherecydes
  9. Chapter 14Book II
  10. Chapter 15Anaximander
  11. Chapter 16Anaximenes
  12. Chapter 17Anaxagoras
  13. Chapter 18Archelaus
  14. Chapter 19Socrates
  15. Chapter 20Xenophon
  16. Chapter 21Aeschines
  17. Chapter 22Aristippus
  18. Chapter 23Phaedo
  19. Chapter 24Euclides
  20. Chapter 25Stilpo
  21. Chapter 26Crito
  22. Chapter 27Simon
  23. Chapter 28Glauco
  24. Chapter 29Simias
  25. Chapter 30Cebes
  26. Chapter 31Menedemus
  27. Chapter 32Book III: The Life, Will, and Legacy of Plato
  28. Chapter 33Plato
  29. Chapter 34Book IV: The Successors of Plato
  30. Chapter 35Speusippus
  31. Chapter 36Xenocrates
  32. Chapter 37Polemo
  33. Chapter 38Crates
  34. Chapter 39Crantor
  35. Chapter 40Arcesilaus
  36. Chapter 41Bion
  37. Chapter 42Lacydes
  38. Chapter 43Carneades
  39. Chapter 44Clitomachus
  40. Chapter 45Book V
  41. Chapter 46Aristotle
  42. Chapter 47Theophrastus
  43. Chapter 48Strato
  44. Chapter 49Lycon
  45. Chapter 50Demetrius
  46. Chapter 51Heraclides
  47. Chapter 52Book VI: The Cynics and the Rise of Stoicism
  48. Chapter 53Antisthenes
  49. Chapter 54Diogenes
  50. Chapter 55Monimus
  51. Chapter 56Onesicritus
  52. Chapter 57Crates
  53. Chapter 58Metrocles
  54. Chapter 59Hipparchia
  55. Chapter 60Menippus
  56. Chapter 61Menedemus
  57. Chapter 62Book VII: The Stoic Doctrine of Virtue and Indifferents
  58. Chapter 63Zeno
  59. Chapter 64Ariston
  60. Chapter 65Herillus
  61. Chapter 66Dionysius
  62. Chapter 67Cleanthes
  63. Chapter 68Sphaerus
  64. Chapter 69Chrysippus
  65. Chapter 70Book VIII: The Pythagorean and Promiscuous Philosophers
  66. Chapter 71Pythagoras
  67. Chapter 72Empedocles
  68. Chapter 73Epicharmus
  69. Chapter 74Archytas
  70. Chapter 75Alcmaeon
  71. Chapter 76Hippasus
  72. Chapter 77Philolaus
  73. Chapter 78Eudoxus
  74. Chapter 79Book IX: The Skeptics and the Eleatic School
  75. Chapter 80Heraclitus
  76. Chapter 81Xenophanes
  77. Chapter 82Parmenides
  78. Chapter 83Melissus
  79. Chapter 84Zeno, the Eleatic
  80. Chapter 85Leucippus
  81. Chapter 86Democritus
  82. Chapter 87Protagoras
  83. Chapter 88Diogenes of Apollonia
  84. Chapter 89Anaxarchus
  85. Chapter 90Pyrrho
  86. Chapter 91Timon
  87. Chapter 92Book X: Epicurus and the Pursuit of Pleasure
  88. Chapter 93Epicurus
  89. Chapter 94Endnotes