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Tiresias: The Ancient Mediterranean Religions Source Database



4479
Diogenes Laertius, Lives Of The Philosophers, 9.51


nanProtagoras was the first to maintain that there are two sides to every question, opposed to each other, and he even argued in this fashion, being the first to do so. Furthermore he began a work thus: Man is the measure of all things, of things that are that they are, and of things that are not that they are not. He used to say that soul was nothing apart from the senses, as we learn from Plato in the Theaetetus, and that everything is true. In another work he began thus: As to the gods, I have no means of knowing either that they exist or that they do not exist. For many are the obstacles that impede knowledge, both the obscurity of the question and the shortness of human life.


Intertexts (texts cited often on the same page as the searched text):

10 results
1. Plato, Cratylus, None (5th cent. BCE - 4th cent. BCE)

385e. Socrates. Now, Hermogenes, let us see. Do you think this is true of the real things, that their reality is a separate one for each person, as Protagoras said with his doctrine
2. Plato, Protagoras, None (5th cent. BCE - 4th cent. BCE)

320c. do not grudge us your demonstration.
3. Plato, Theaetetus, None (5th cent. BCE - 4th cent. BCE)

151e. SOC. Good! Excellent, my boy! That is the way one ought to speak out. But come now, let us examine your utterance together, and see whether it is a real offspring or a mere wind-egg. Perception, you say, is knowledge? THEAET. Yes. SOC. And, indeed, if I may venture to say so, it is not a bad description of knowledge
4. Xenophon, Memoirs, 2.1.27-2.1.28, 2.1.31-2.1.33 (5th cent. BCE - 4th cent. BCE)

2.1.27. Meantime the other had drawn near, and she said: I, too, am come to you, Heracles: I know your parents and I have taken note of your character during the time of your education. Therefore I hope that, if you take the road that leads to me, you will turn out a right good doer of high and noble deeds, and I shall be yet more highly honoured and more illustrious for the blessings I bestow. But I will not deceive you by a pleasant prelude: I will rather tell you truly the things that are, as the gods have ordained them. 2.1.28. For of all things good and fair, the gods give nothing to man without toil and effort. If you want the favour of the gods, you must worship the gods: if you desire the love of friends, you must do good to your friends: if you covet honour from a city, you must aid that city: if you are fain to win the admiration of all Hellas for virtue, you must strive to do good to Hellas : if you want land to yield you fruits in abundance, you must cultivate that land: if you are resolved to get wealth from flocks, you must care for those flocks: if you essay to grow great through war and want power to liberate your friends and subdue your foes, you must learn the arts of war from those who know them and must practise their right use: and if you want your body to be strong, you must accustom your body to be the servant of your mind, and train it with toil and sweat. 2.1.31. Immortal art thou, yet the outcast of the gods, the scorn of good men. Praise, sweetest of all things to hear, thou hearest not: the sweetest of all sights thou beholdest not, for never yet hast thou beheld a good work wrought by thyself. Who will believe what thou dost say? who will grant what thou dost ask? Or what sane man will dare join thy throng? While thy votaries are young their bodies are weak, when they wax old, their souls are without sense; idle and sleek they thrive in youth, withered and weary they journey through old age, and their past deeds bring them shame, their present deeds distress. Pleasure they ran through in their youth: hardship they laid up for their old age. 2.1.32. But I company with gods and good men, and no fair deed of god or man is done without my aid. I am first in honour among the gods and among men that are akin to me: to craftsmen a beloved fellow-worker, to masters a faithful guardian of the house, to servants a kindly protector: good helpmate in the toils of peace, staunch ally in the deeds of war, best partner in friendship. 2.1.33. To my friends meat and drink bring sweet and simple enjoyment: for they wait till they crave them. And a sweeter sleep falls on them than on idle folk: they are not vexed at awaking from it, nor for its sake do they neglect to do their duties. The young rejoice to win the praise of the old; the elders are glad to be honoured by the young; with joy they recall their deeds past, and their present well-doing is joy to them, for through me they are dear to the gods, lovely to friends, precious to their native land. And when comes the appointed end, they lie not forgotten and dishonoured, but live on, sung and remembered for all time. O Heracles, thou son of goodly parents, if thou wilt labour earnestly on this wise, thou mayest have for thine own the most blessed happiness.
5. Aristotle, Metaphysics, None (4th cent. BCE - 4th cent. BCE)

6. Cicero, Academica, 2.16 (2nd cent. BCE - 1st cent. BCE)

7. Philo of Alexandria, On The Posterity of Cain, 35 (1st cent. BCE - 1st cent. CE)

35. What then is the position of the impious man? Why, that the human mind is the measure of all things; which also they say that one of the ancient philosophers, Protagoras, used to employ, being a descendant of the folly of Cain. And from thence I conjecture that his wife, being known to him, brought forth Enoch; and the name Enoch being interpreted means, thy grace.
8. Sextus, Against The Mathematicians, 7.60, 9.54 (2nd cent. CE - 3rd cent. CE)

9. Sextus, Outlines of Pyrrhonism, 1.216 (2nd cent. CE - 3rd cent. CE)

10. Diogenes Laertius, Lives of The Philosophers, 9.20, 9.55, 9.61, 9.71-9.74, 9.76, 9.79-9.89, 9.94, 9.96-9.97, 9.99-9.108 (3rd cent. CE - 3rd cent. CE)

9.20. He also said that the mass of things falls short of thought; and again that our encounters with tyrants should be as few, or else as pleasant, as possible. When Empedocles remarked to him that it is impossible to find a wise man, Naturally, he replied, for it takes a wise man to recognize a wise man. Sotion says that he was the first to maintain that all things are incognizable, but Sotion is in error.One of his poems is The Founding of Colophon, and another The Settlement of a Colony at Elea in Italy, making 2000 lines in all. He flourished about the 60th Olympiad. That he buried his sons with his own hands like Anaxagoras is stated by Demetrius of Phalerum in his work On Old Age and by Panaetius the Stoic in his book of Cheerfulness. He is believed to have been sold into slavery by [... and to have been set free by] the Pythagoreans Parmeniscus and Orestades: so Favorinus in the first book of his Memorabilia. There was also another Xenophanes, of Lesbos, an iambic poet.Such were the sporadic philosophers. 9.55. The works of his which survive are these:The Art of Controversy.of Wrestling.On Mathematics.of the State.of Ambition.of Virtues.of the Ancient Order of Things.On the Dwellers in Hades.of the Misdeeds of Mankind.A Book of Precepts.of Forensic Speech for a Fee, two books of opposing arguments.This is the list of his works. Moreover there is a dialogue which Plato wrote upon him.Philochorus says that, when he was on a voyage to Sicily, his ship went down, and that Euripides hints at this in his Ixion. According to some his death occurred, when he was on a journey, at nearly ninety years of age 9.61. 11. PYRRHOPyrrho of Elis was the son of Pleistarchus, as Diocles relates. According to Apollodorus in his Chronology, he was first a painter; then he studied under Stilpo's son Bryson: thus Alexander in his Successions of Philosophers. Afterwards he joined Anaxarchus, whom he accompanied on his travels everywhere so that he even forgathered with the Indian Gymnosophists and with the Magi. This led him to adopt a most noble philosophy, to quote Ascanius of Abdera, taking the form of agnosticism and suspension of judgement. He denied that anything was honourable or dishonourable, just or unjust. And so, universally, he held that there is nothing really existent, but custom and convention govern human action; for no single thing is in itself any more this than that. 9.71. Some call Homer the founder of this school, for to the same questions he more than anyone else is always giving different answers at different times, and is never definite or dogmatic about the answer. The maxims of the Seven Wise Men, too, they call sceptical; for instance, Observe the Golden Mean, and A pledge is a curse at one's elbow, meaning that whoever plights his troth steadfastly and trustfully brings a curse on his own head. Sceptically minded, again, were Archilochus and Euripides, for Archilochus says:Man's soul, O Glaucus, son of Leptines,Is but as one short day that Zeus sends down.And Euripides:Great God! how can they say poor mortal menHave minds and think? Hang we not on thy will?Do we not what it pleaseth thee to wish? 9.72. Furthermore, they find Xenophanes, Zeno of Elea, and Democritus to be sceptics: Xenophanes because he says,Clear truth hath no man seen nor e'er shall knowand Zeno because he would destroy motion, saying, A moving body moves neither where it is nor where it is not; Democritus because he rejects qualities, saying, Opinion says hot or cold, but the reality is atoms and empty space, and again, of a truth we know nothing, for truth is in a well. Plato, too, leaves the truth to gods and sons of gods, and seeks after the probable explanation. Euripides says: 9.73. Who knoweth if to die be but to live,And that called life by mortals be but death?So too Empedocles:So to these mortal may not list nor lookNor yet conceive them in his mind;and before that:Each believes naught but his experience.And even Heraclitus: Let us not conjecture on deepest questions what is likely. Then again Hippocrates showed himself two-sided and but human. And before them all Homer:Pliant is the tongue of mortals; numberless the tales within it;andAmple is of words the pasture, hither thither widely ranging;andAnd the saying which thou sayest, back it cometh later on thee,where he is speaking of the equal value of contradictory sayings. 9.74. The Sceptics, then, were constantly engaged in overthrowing the dogmas of all schools, but enuntiated none themselves; and though they would go so far as to bring forward and expound the dogmas of the others, they themselves laid down nothing definitely, not even the laying down of nothing. So much so that they even refuted their laying down of nothing, saying, for instance, We determine nothing, since otherwise they would have been betrayed into determining; but we put forward, say they, all the theories for the purpose of indicating our unprecipitate attitude, precisely as we might have done if we had actually assented to them. Thus by the expression We determine nothing is indicated their state of even balance; which is similarly indicated by the other expressions, Not more (one thing than another) 9.76. But the Sceptics even refute the statement Not more (one thing than another). For, as forethought is no more existent than non-existent, so Not more (one thing than another) is no more existent than not. Thus, as Timon says in the Pytho, the statement means just absence of all determination and withholding of assent. The other statement, Every saying, etc., equally compels suspension of judgement; when facts disagree, but the contradictory statements have exactly the same weight, ignorance of the truth is the necessary consequence. But even this statement has its corresponding antithesis, so that after destroying others it turns round and destroys itself, like a purge which drives the substance out and then in its turn is itself eliminated and destroyed. 9.79. They showed, then, on the basis of that which is contrary to what induces belief, that the probabilities on both sides are equal. Perplexities arise from the agreements between appearances or judgements, and these perplexities they distinguished under ten different modes in which the subjects in question appeared to vary. The following are the ten modes laid down.The first mode relates to the differences between living creatures in respect of those things which give them pleasure or pain, or are useful or harmful to them. By this it is inferred that they do not receive the same impressions from the same things, with the result that such a conflict necessarily leads to suspension of judgement. For some creatures multiply without intercourse, for example, creatures that live in fire, the Arabian phoenix and worms; others by union, such as man and the rest. 9.80. Some are distinguished in one way, some in another, and for this reason they differ in their senses also, hawks for instance being most keen-sighted, and dogs having a most acute sense of smell. It is natural that if the senses, e.g. eyes, of animals differ, so also will the impressions produced upon them; so to the goat vine-shoots are good to eat, to man they are bitter; the quail thrives on hemlock, which is fatal to man; the pig will eat ordure, the horse will not.The second mode has reference to the natures and idiosyncrasies of men; for instance, Demophon, Alexander's butler, used to get warm in the shade and shiver in the sun. 9.81. Andron of Argos is reported by Aristotle to have travelled across the waterless deserts of Libya without drinking. Moreover, one man fancies the profession of medicine, another farming, and another commerce; and the same ways of life are injurious to one man but beneficial to another; from which it follows that judgement must be suspended.The third mode depends on the differences between the sense-channels in different cases, for an apple gives the impression of being pale yellow in colour to the sight, sweet in taste and fragrant in smell. An object of the same shape is made to appear different by differences in the mirrors reflecting it. Thus it follows that what appears is no more such and such a thing than something different. 9.82. The fourth mode is that due to differences of condition and to changes in general; for instance, health, illness, sleep, waking, joy, sorrow, youth, old age, courage, fear, want, fullness, hate, love, heat, cold, to say nothing of breathing freely and having the passages obstructed. The impressions received thus appear to vary according to the nature of the conditions. Nay, even the state of madmen is not contrary to nature; for why should their state be so more than ours? Even to our view the sun has the appearance of standing still. And Theon of Tithorea used to go to bed and walk in his sleep, while Pericles' slave did the same on the housetop. 9.83. The fifth mode is derived from customs, laws, belief in myths, compacts between nations and dogmatic assumptions. This class includes considerations with regard to things beautiful and ugly, true and false, good and bad, with regard to the gods, and with regard to the coming into being and the passing away of the world of phenomena. Obviously the same thing is regarded by some as just and by others as unjust, or as good by some and bad by others. Persians think it not unnatural for a man to marry his daughter; to Greeks it is unlawful. The Massagetae, according to Eudoxus in the first book of his Voyage round the World, have their wives in common; the Greeks have not. The Cilicians used to delight in piracy; not so the Greeks. 9.84. Different people believe in different gods; some in providence, others not. In burying their dead, the Egyptians embalm them; the Romans burn them; the Paeonians throw them into lakes. As to what is true, then, let suspension of judgement be our practice.The sixth mode relates to mixtures and participations, by virtue of which nothing appears pure in and by itself, but only in combination with air, light, moisture, solidity, heat, cold, movement, exhalations and other forces. For purple shows different tints in sunlight, moonlight, and lamplight; and our own complexion does not appear the same at noon and when the sun is low. 9.85. Again, a rock which in air takes two men to lift is easily moved about in water, either because, being in reality heavy, it is lifted by the water or because, being light, it is made heavy by the air. of its own inherent property we know nothing, any more than of the constituent oils in an ointment.The seventh mode has reference to distances, positions, places and the occupants of the places. In this mode things which are thought to be large appear small, square things round; flat things appear to have projections, straight things to be bent, and colourless coloured. So the sun, on account of its distance, appears small, mountains when far away appear misty and smooth, but when near at hand rugged. 9.86. Furthermore, the sun at its rising has a certain appearance, but has a dissimilar appearance when in mid-heaven, and the same body one appearance in a wood and another in open country. The image again varies according to the position of the object, and a dove's neck according to the way it is turned. Since, then, it is not possible to observe these things apart from places and positions, their real nature is unknowable.The eighth mode is concerned with quantities and qualities of things, say heat or cold, swiftness or slowness, colourlessness or variety of colours. Thus wine taken in moderation strengthens the body, but too much of it is weakening; and so with food and other things. 9.87. The ninth mode has to do with perpetuity, strangeness, or rarity. Thus earthquakes are no surprise to those among whom they constantly take place; nor is the sun, for it is seen every day. This ninth mode is put eighth by Favorinus and tenth by Sextus and Aenesidemus; moreover the tenth is put eighth by Sextus and ninth by Favorinus.The tenth mode rests on inter-relation, e.g. between light and heavy, strong and weak, greater and less, up and down. Thus that which is on the right is not so by nature, but is so understood in virtue of its position with respect to something else; for, if that change its position, the thing is no longer on the right. 9.88. Similarly father and brother are relative terms, day is relative to the sun, and all things relative to our mind. Thus relative terms are in and by themselves unknowable. These, then, are the ten modes of perplexity.But Agrippa and his school add to them five other modes, resulting respectively from disagreement, extension ad infinitum, relativity, hypothesis and reciprocal inference. The mode arising from disagreement proves, with regard to any inquiry whether in philosophy or in everyday life, that it is full of the utmost contentiousness and confusion. The mode which involves extension ad infinitum refuses to admit that what is sought to be proved is firmly established, because one thing furnishes the ground for belief in another, and so on ad infinitum. 9.89. The mode derived from relativity declares that a thing can never be apprehended in and by itself, but only in connexion with something else. Hence all things are unknowable. The mode resulting from hypothesis arises when people suppose that you must take the most elementary of things as of themselves entitled to credence, instead of postulating them: which is useless, because some one else will adopt the contrary hypothesis. The mode arising from reciprocal inference is found whenever that which should be confirmatory of the thing requiring to be proved itself has to borrow credit from the latter, as, for example, if anyone seeking to establish the existence of pores on the ground that emanations take place should take this (the existence of pores) as proof that there are emanations. 9.94. We must not assume that what convinces us is actually true. For the same thing does not convince every one, nor even the same people always. Persuasiveness sometimes depends on external circumstances, on the reputation of the speaker, on his ability as a thinker or his artfulness, on the familiarity or the pleasantness of the topic.Again, they would destroy the criterion by reasoning of this kind. Even the criterion has either been critically determined or not. If it has not, it is definitely untrustworthy, and in its purpose of distinguishing is no more true than false. If it has, it will belong to the class of particular judgements, so that one and the same thing determines and is determined, and the criterion which has determined will have to be determined by another, that other by another, and so on ad infinitum. 9.96. They deny, too, that there is such a thing as a sign. If there is, they say, it must either be sensible or intelligible. Now it is not sensible, because what is sensible is a common attribute, whereas a sign is a particular thing. Again, the sensible is one of the things which exist by way of difference, while the sign belongs to the category of relative. Nor is a sign an object of thought, for objects of thought are of four kinds, apparent judgements on things apparent, non-apparent judgements on things non-apparent, non-apparent on apparent, or apparent on non-apparent; and a sign is none of these, so that there is no such thing as a sign. A sign is not apparent on apparent, for what is apparent needs no sign; nor is it non-apparent on non-apparent, for what is revealed by something must needs appear; 9.97. nor is it non-apparent on apparent, for that which is to afford the means of apprehending something else must itself be apparent; nor, lastly, is it apparent on non-apparent, because the sign, being relative, must be apprehended along with that of which it is the sign, which is not here the case. It follows that nothing uncertain can be apprehended; for it is through signs that uncertain things are said to be apprehended.Causes, too, they destroy in this way. A cause is something relative; for it is relative to what can be caused, namely, the effect. But things which are relative are merely objects of thought and have no substantial existence. 9.99. But if both be alike causes, there will be nothing to be acted upon Nor can an incorporeal thing be the cause of an incorporeal thing, for the same reason. And a thing incorporeal cannot be the cause of a body, since nothing incorporeal creates anything corporeal. And, lastly, a body cannot be the cause of anything incorporeal, because what is produced must be of the material operated upon; but if it is not operated upon because it is incorporeal, it cannot be produced by anything whatever. Therefore there is no such thing as a cause. A corollary to this is their statement that the first principles of the universe have no real existence; for in that case something must have been there to create and act.Furthermore there is no motion; for that which moves moves either in the place where it is or in a place where it is not. But it cannot move in the place where it is, still less in any place where it is not. Therefore there is no such thing as motion. 9.100. They used also to deny the possibility of learning. If anything is taught, they say, either the existent is taught through its existence or the non-existent through its non-existence. But the existent is not taught through its existence, for the nature of existing things is apparent to and recognized by all; nor is the non-existent taught through the nonexistent, for with the non-existent nothing is ever done, so that it cannot be taught to anyone.Nor, say they, is there any coming into being. For that which is does not come into being, since it is; nor yet that which is not, for it has no substantial existence, and that which is neither substantial nor existent cannot have had the chance of coming into being either. 9.101. There is nothing good or bad by nature, for if there is anything good or bad by nature, it must be good or bad for all persons alike, just as snow is cold to all. But there is no good or bad which is such to all persons in common; therefore there is no such thing as good or bad by nature. For either all that is thought good by anyone whatever must be called good, or not all. Certainly all cannot be so called; since one and the same thing is thought good by one person and bad by another; for instance, Epicurus thought pleasure good and Antisthenes thought it bad; thus on our supposition it will follow that the same thing is both good and bad. But if we say that not all that anyone thinks good is good, we shall have to judge the different opinions; and this is impossible because of the equal validity of opposing arguments. Therefore the good by nature is unknowable. 9.102. The whole of their mode of inference can be gathered from their extant treatises. Pyrrho himself, indeed, left no writings, but his associates Timon, Aenesidemus, Numenius and Nausiphanes did; and others as well.The dogmatists answer them by declaring that the Sceptics themselves do apprehend and dogmatize; for when they are thought to be refuting their hardest they do apprehend, for at the very same time they are asseverating and dogmatizing. Thus even when they declare that they determine nothing, and that to every argument there is an opposite argument, they are actually determining these very points and dogmatizing. 9.103. The others reply, We confess to human weaknesses; for we recognize that it is day and that we are alive, and many other apparent facts in life; but with regard to the things about which our opponents argue so positively, claiming to have definitely apprehended them, we suspend our judgement because they are not certain, and confine knowledge to our impressions. For we admit that we see, and we recognize that we think this or that, but how we see or how we think we know not. 9.104. And we say in conversation that a certain thing appears white, but we are not positive that it really is white. As to our 'We determine nothing' and the like, we use the expressions in an undogmatic sense, for they are not like the assertion that the world is spherical. Indeed the latter statement is not certain, but the others are mere admissions. Thus in saying 'We determine nothing,' we are not determining even that.Again, the dogmatic philosophers maintain that the Sceptics do away with life itself, in that they reject all that life consists in. The others say this is false, for they do not deny that we see; they only say that they do not know how we see. We admit the apparent fact, say they, without admitting that it really is what it appears to be. We also perceive that fire burns; as to whether it is its nature to burn, we suspend our judgement. 9.105. We see that a man moves, and that he perishes; how it happens we do not know. We merely object to accepting the unknown substance behind phenomena. When we say a picture has projections, we are describing what is apparent; but if we say that it has no projections, we are then speaking, not of what is apparent, but of something else. This is what makes Timon say in his Python that he has not gone outside what is customary. And again in the Conceits he says:But the apparent is omnipotent wherever it goes;and in his work On the Senses, I do not lay it down that honey is sweet, but I admit that it appears to be so. 9.106. Aenesidemus too in the first book of his Pyrrhonean Discourses says that Pyrrho determines nothing dogmatically, because of the possibility of contradiction, but guides himself by apparent facts. Aenesidemus says the same in his works Against Wisdom and On Inquiry. Furthermore Zeuxis, the friend of Aenesidemus, in his work On Two-sided Arguments, Antiochus of Laodicea, and Apellas in his Agrippa all hold to phenomena alone. Therefore the apparent is the Sceptic's criterion, as indeed Aenesidemus says; and so does Epicurus. Democritus, however, denied that any apparent fact could be a criterion, indeed he denied the very existence of the apparent. 9.107. Against this criterion of appearances the dogmatic philosophers urge that, when the same appearances produce in us different impressions, e.g. a round or square tower, the Sceptic, unless he gives the preference to one or other, will be unable to take any course; if on the other hand, say they, he follows either view, he is then no longer allowing equal value to all apparent facts. The Sceptics reply that, when different impressions are produced, they must both be said to appear; for things which are apparent are so called because they appear. The end to be realized they hold to be suspension of judgement, which brings with it tranquillity like its shadow: so Timon and Aenesidemus declare. 9.108. For in matters which are for us to decide we shall neither choose this nor shrink from that; and things which are not for us to decide but happen of necessity, such as hunger, thirst and pain, we cannot escape, for they are not to be removed by force of reason. And when the dogmatists argue that he may thus live in such a frame of mind that he would not shrink from killing and eating his own father if ordered to do so, the Sceptic replies that he will be able so to live as to suspend his judgement in cases where it is a question of arriving at the truth, but not in matters of life and the taking of precautions. Accordingly we may choose a thing or shrink from a thing by habit and may observe rules and customs. According to some authorities the end proposed by the Sceptics is insensibility; according to others, gentleness.


Subjects of this text:

subject book bibliographic info
academics, the academy Long, From Epicurus to Epictetus Studies in Hellenistic and Roman Philosophy (2006) 109
aenesidemus Long, From Epicurus to Epictetus Studies in Hellenistic and Roman Philosophy (2006) 109
ancient discourse on being human, and role of reason Dürr, Paul on the Human Vocation: Reason Language in Romans and Ancient Philosophical Tradition (2022) 98
anthropology, ancient discourse on role of human reason Dürr, Paul on the Human Vocation: Reason Language in Romans and Ancient Philosophical Tradition (2022) 98
argument pro and contra Long, From Epicurus to Epictetus Studies in Hellenistic and Roman Philosophy (2006) 109
aristotle, god in Wolfsdorf, Early Greek Ethics (2020) 208
atheism Wolfsdorf, Early Greek Ethics (2020) 208
being human, ancient anthropological discourse on Dürr, Paul on the Human Vocation: Reason Language in Romans and Ancient Philosophical Tradition (2022) 98
carneades Long, From Epicurus to Epictetus Studies in Hellenistic and Roman Philosophy (2006) 109
cicero, on academic sceptics Long, From Epicurus to Epictetus Studies in Hellenistic and Roman Philosophy (2006) 109
decleva caizzi, f. Long, From Epicurus to Epictetus Studies in Hellenistic and Roman Philosophy (2006) 109
democritus Vogt, Pyrrhonian Skepticism in Diogenes Laertius (2015) 77
determinism, dialectic Long, From Epicurus to Epictetus Studies in Hellenistic and Roman Philosophy (2006) 109
diels, hermann Wolfsdorf, Early Greek Ethics (2020) 78
diogenes laertius Vogt, Pyrrhonian Skepticism in Diogenes Laertius (2015) 77
discourse on being human Dürr, Paul on the Human Vocation: Reason Language in Romans and Ancient Philosophical Tradition (2022) 98
dissoi logoi Wolfsdorf, Early Greek Ethics (2020) 308
empedocles Vogt, Pyrrhonian Skepticism in Diogenes Laertius (2015) 77
epoche Long, From Epicurus to Epictetus Studies in Hellenistic and Roman Philosophy (2006) 109
evaluative triad Wolfsdorf, Early Greek Ethics (2020) 308
fragments, textual Wolfsdorf, Early Greek Ethics (2020) 77, 78
good (agathos, to agathon), agathon—kalon—dikaion triad Wolfsdorf, Early Greek Ethics (2020) 308
gray, v. Wolfsdorf, Early Greek Ethics (2020) 208
heraclitus Vogt, Pyrrhonian Skepticism in Diogenes Laertius (2015) 77
human reason, greco-roman anthropological discourse on Dürr, Paul on the Human Vocation: Reason Language in Romans and Ancient Philosophical Tradition (2022) 98
human reason Dürr, Paul on the Human Vocation: Reason Language in Romans and Ancient Philosophical Tradition (2022) 98
identity theses Wolfsdorf, Early Greek Ethics (2020) 308
justice (dikē), agathon—kalon—dikaion triad Wolfsdorf, Early Greek Ethics (2020) 308
lacydes Long, From Epicurus to Epictetus Studies in Hellenistic and Roman Philosophy (2006) 109
man measure statement (protagoras), textual evidence Wolfsdorf, Early Greek Ethics (2020) 77, 78
man measure statement (protagoras) Wolfsdorf, Early Greek Ethics (2020) 77, 78
medical ethics, role of σοφία\u200e Wolfsdorf, Early Greek Ethics (2020) 308
non-cognition Vogt, Pyrrhonian Skepticism in Diogenes Laertius (2015) 77
parmenides, and protagoras Wolfsdorf, Early Greek Ethics (2020) 77
plato, as source for protagoras Wolfsdorf, Early Greek Ethics (2020) 77, 78
prodicus, heracles choice story Wolfsdorf, Early Greek Ethics (2020) 208
prodicus, religious beliefs Wolfsdorf, Early Greek Ethics (2020) 208
prodicus Wolfsdorf, Early Greek Ethics (2020) 208
protagoras, on gods Wolfsdorf, Early Greek Ethics (2020) 208, 308
protagoras, on humans Dürr, Paul on the Human Vocation: Reason Language in Romans and Ancient Philosophical Tradition (2022) 98
protagoras, textual evidence Wolfsdorf, Early Greek Ethics (2020) 77, 78
protagoras Long, From Epicurus to Epictetus Studies in Hellenistic and Roman Philosophy (2006) 109; Vogt, Pyrrhonian Skepticism in Diogenes Laertius (2015) 77
pyrrho Vogt, Pyrrhonian Skepticism in Diogenes Laertius (2015) 77
pyrrhonism Vogt, Pyrrhonian Skepticism in Diogenes Laertius (2015) 77
pythagoras Vogt, Pyrrhonian Skepticism in Diogenes Laertius (2015) 77
ratio Long, From Epicurus to Epictetus Studies in Hellenistic and Roman Philosophy (2006) 109
reason language, used in ancient texts in wider sense Dürr, Paul on the Human Vocation: Reason Language in Romans and Ancient Philosophical Tradition (2022) 98
religion, in aristotle Wolfsdorf, Early Greek Ethics (2020) 208
religion, in prodicus Wolfsdorf, Early Greek Ethics (2020) 208
scepticism, academic Long, From Epicurus to Epictetus Studies in Hellenistic and Roman Philosophy (2006) 109
scepticism, pyrrhonean' Long, From Epicurus to Epictetus Studies in Hellenistic and Roman Philosophy (2006) 109
skeptics Vogt, Pyrrhonian Skepticism in Diogenes Laertius (2015) 77
socrates, influence on scepticism Long, From Epicurus to Epictetus Studies in Hellenistic and Roman Philosophy (2006) 109
socratic literature, evaluative triad in Wolfsdorf, Early Greek Ethics (2020) 308
sotion Vogt, Pyrrhonian Skepticism in Diogenes Laertius (2015) 77
xenophanes Vogt, Pyrrhonian Skepticism in Diogenes Laertius (2015) 77
zeno of elea Vogt, Pyrrhonian Skepticism in Diogenes Laertius (2015) 77
καλόν\u200e, τὸ\u200e, agathon—kalon—dikaion triad Wolfsdorf, Early Greek Ethics (2020) 308