Diogenes Laertius was a historian who wrote about all the ancient philosophers. He is one of our best sources in the lives of these wise men. Since most of the texts are now lost, these books provide a wealth of information and knowledge.
In ten books, bundled in the ‘Lives of Eminent Philosophers’, we can read about the lives of the ancient thinkers from Plato to Antisthenes and Epicurus. Book seven is entirely devoted to the Stoics, starting with Zeno.
“To the query, “What is a friend?” his reply was, “A single soul dwelling in two bodies.”
Aristotle, according to Diogenes Laertius, Lives of Eminent Philosophers, Book 5, Chapter 1. p.20
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“The reason why we have two ears and only one mouth is that we may listen the more and talk the less.”
Zeno of Citium, Diogenes Laertius, Lives of Eminent Philosophers, Book 7. p.23
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“And virtue, he [Zeno] holds, is a harmonious disposition, choice-worthy for its own sake and not from hope or fear or any external motive. Moreover, it is in virtue that happiness consists; for virtue is the state of the mind which tends to make the whole of life harmonious.”
Chrysippus, Diogenes Laertius, Lives of Eminent Philosophers, book 7. p.89
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“Virtue is the same for women as for men.”
Antisthenes, Diogenes Laertius, Lives of Eminent Philosophers, book 7. p.12
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“By pleasure we mean the absence of pain in the boy and of trouble in the soul.”
Epicurus, Diogenes Laertius, Lives of Eminent Philosophers, Book 10. p.657
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“It is sober reasoning, searching out the ground of every choice and avoidance, and banishing those beliefs through which the greatest tumults take possession of the soul.”
Epicurus, Diogenes Laertius, Lives of Eminent Philosophers, Book 10. p.657
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“Nor, again, will the wise man marry and rear a family.”
Epicurus, Diogenes Laertius, Lives of Eminent Philosophers, Book 10. p.645
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“Nor will he take part in politics.”
Epicurus, Diogenes Laertius, Lives of Eminent Philosophers, Book 10. p.645
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“The end may be defined as life in accordance with nature or, in other words, in accordance with our own human nature as well as that of the universe.”
Diogenes Laërtius, in Lives of Eminent Philosophers: ‘Zeno of Citium’, 7.87
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“Freedom from precipitancy is a knowledge when to give or withhold the mind’s assent to impressions.”
Diogenes Laertius, Lives of Eminent Philosophers, Book 7.46
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“They [Hecato and Zeno] hold the emotions to be judgments, as is stated by Chrysippus in his treatise on the Passions: avarice being a supposition that money is a good, while the case is similar with drunkenness and profligacy and all the other emotions.”
Diogenes Laertius, Lives of Eminent Philosophers, Book 7, Zeno, 110
Post: What Is a Stoic Mindset?
“Nature in their view is an artistically working fire, going on its way to create: which is equivalent to a fiery, creative, or fashioning breath.”
Diogenes Laertius, Lives of Eminent Philosophers, Book 7, Zeno, 186
Post: What is Physis?