Pythagoras

1. Vitae philosophorum Diogenes Laertius 1 neutral 1 citation · 2 passages

   book 9 2 passages anchored here

   Democritus's own treatise Pythagoras is cited both as evidence of his admiration for Pythagoras and in the catalogue of his works.

   Moreover, he mentions Pythagoras himself, praising him in a work of his own entitled Pythagoras.

2. De amicorum multitudine Plutarch 1 authority 1 citation

   de amicorum multitudine

   Pythagoras's precept is invoked directly and without qualification as authoritative support for the essay's central restraint.

   Therefore it is far more advisable, as Pythagoras directs, not to shake hands with too many, —that is, not to make many friends,—nor to affect that popular kind of easiness which courts and embraces every acquaintance that occurs, but carries with it on the reverse a thousand mischiefs;

3. De capienda ex inimicis utilitate Plutarch 1 authority 1 citation

   ch. 1

   Pythagoras's teaching is cited directly as a moral authority, used to argue that still greater generosity is owed to human enemies.

   Wherefore, if Pythagoras was highly esteemed for instructing his disciples to avoid all manner of cruelty against beasts themselves,—so that he himself would redeem them out of their captivity in either the fowler’s or the fisherman’s net, and forbade his followers to kill any creature,—it is surely much better and more manly in our differences with men to show ourselves generous, just, and detest …

4. De liberis educandis Plutarch 1 endorsed 1 citation

   de liberis educandis

   Plutarch explicitly attributes the teaching to Pythagoras and calls it greatly useful, then spends the whole paragraph expounding it approvingly.

   This was taught by Pythagoras in certain enigmatical sentences, which I shall here relate and expound, as being greatly useful to further virtuous inclinations.

5. De recta ratione audiendi Plutarch 1 extended 1 citation

   de recta ratione audiendi

   Pythagoras's saying is cited and then developed and clarified by Plutarch to correct a common misapplication of it, extending its proper meaning.

   For many wrest that sentence of Pythagoras, who used to say that he had learned by philosophy to admire nothing;

6. De Superstitione Plutarch 1 authority 1 citation

   de superstitione

   Pythagoras is named explicitly as the source of the maxim used as the measure of proper conduct near the Gods.

   In a word, he utterly baffles that saying, of Pythagoras, that we are then best when we come near the Gods.

7. Quomodo adolescens poetas audire debeat Plutarch 1 authority 1 citation

   locus not recovered

   Pythagoras is named explicitly as a philosophical authority whose doctrines are said to align with, and thereby strengthen, profitable poetic sentences.

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