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Fundamina (Pretoria) vol.20 no.1 Pretoria ene. 2014


On supernatural law: about the origins of human rights and natural law in antiquity



Carlos Felipe Amunátegui Perelló*

Professor in Roman Law, Pontificia Universidad Católica, Chile




This article traces the classical roots of natural law and human rights. Although in antiquity there was no concept of human rights, among poets, philosophers and jurists there was an idea of justice that no government could overrule. Although the idea of rights was absent from these constructs, they form the basis of modern legal ideas. We find the first exposition of basic rights in the work of Hesiod, which, after the fifth-century crisis in the Greek concept of the world, led to a new idea of natural justice that was developed by Aristotle.



1. Introduction1

Human rights can be traced back to an earlier and older concept, which viewed the rational nature of man as a limitation on the power of the sovereign. In this sense, modern ideas on human rights are rooted in the concept of natural law2, one of the many products of antiquity's notions of the law3. The idea of limiting the power of the sovereign, the hubris of the tyrant, was an element of Greek political thought practically from its origins4, infusing the whole of Greek political history, eventually being received into Roman thought and finally forming the basis of modern legal theory5.

Although in antiquity there was no human-rights theory6, from the heart of Greek political philosophy a concept of natural law emerged that discarded most of the superstitions of the ancient period, and served as the foundation of the political and legal order. Like fire, this rational conception continued to burn bright in Greece and Rome and even, after two millennia, in the formation of modern states.

This article will briefly trace the pre-history of natural law, analysing its evolution in Greek legal thought, from the concept of supernatural justice through the crisis in Greek political ideas that gave birth to the concept of natural law.


2. Hesiod and supernatural justice

The ancient Greek world was a universe divided into three layers. The first was the divine order of what was proper for the gods, the second was the human and the last the natural order7. The need for justice came from the observation of nature, which was seen negatively. The Greeks conceived the natural world as one hostile to human kind, in which undesirable events happened that ought to be reversed. The world of nature was alien to humankind, lacked justice and was governed by the law of nature, which decreed that the strongest prevailed. Men turned to Justice, a goddess who regulated their social relations and liberated them from this harsh natural law that was nothing more than brute force. Therefore, l'attuazione della diké è il segno che distingue l'uomo della bestica8.

Even in the earliest Greek literature we see this image. In particular, the didactic poem "Works and Days" of Hesiod, was of particular significance in antiquity. This is one of the first literary works written in Greek (c. eighth century BC)9, and is almost as old as the Iliad. It is a popular work, having nothing to do with the Homeric heroes and kings, written by a peasant who cultivated a small piece of land with his hands. It expresses distrust of both war10 and the whole ruling class11. In a way, this is a piece of resistance literature confronting power, especially power exercised in an arbitrary fashion contrary to the interests of the common people.

The poem takes the form of a letter addressed to the author's brother, Perses, who deprived him of his inheritance by bribing the judges who were to decide their dispute. The main subject of the poem is therefore justice itself, which, according to the poet, transcends the judgments of the ruling class and comes directly from Zeus:

Oh kings! Consider for yourselves this punishment, for the gods, mingling with humankind, see those who persecute others with unfair judgments without even caring about the gods. On the land, which sustains many, there are thirty thousand of Zeus' immortals watching over mortal men, who run here and there over the land watching their fair judgments and bad deeds12.

Therefore the main thing that separates animals and humankind is Justice, a goddess and daughter of Zeus13. To illustrate his point, the poet speaks of the parable of the hawk and the nightingale, where the hawk tries to justify his behaviour to the nightingale it has caught in its claws:

Oh you unfortunate creature, why complain? You are prey to someone stronger than yourself. You will go wherever I take you, even if you are a bard. I shall eat you, or free you as I choose. Damnation to those who wish to fight those stronger than themselves. They will not be victorious and they will be ashamed and sore14.

To deal with this animal and natural world, the poet envisages a different role for humankind, not subject to mere brute force:

Oh Perses! Bear this in mind: heed justice and reject violence, for the son of Chronos has imposed this law upon humankind. He has permitted fish, wild animals and birds of prey to devour each other, for they do not know justice, but to men he has given justice, which is the best of things. If in the agora someone wants to speak with justice, far-seeing Zeus gives him wealth, but if he lies and perjures himself, he is bound to be punished. His descendants diminish and die out, while the descendants of the righteous are well known and abundant15.

Hesiod, non accetta il diritto del piú forte perché bestiale e ingiusto16. Men are outside the natural world and its law, from which they are protected by the gods, who have given us Justice to regulate our social relations17. Even kings should follow it, lest they be judged and the whole community condemned:

Oh kings, beware this punishment, for gods are present among men who see how many are persecuted in unfair trials in which no attention is paid to the gods18.

Humankind is ruled by norms, apart from those of the State, which neither the central authority nor common person should contravene. This law is not natural, because it is exactly what differentiates men from the world of nature, but rather supernatural, for it comes directly from the gods, who also enforce it19.

It seems it is not only in Hesiod that one finds the idea of government bound by divine justice and rules that cannot be ousted by the laws of the community. It emerges in so many other works on justice that it appears to form part of the common heritage of the Greek people20. The link between divinity and the nomos is a common topic in philosophy and literature. For instance, for Heraclitus21 the nomos of the polis, which encompasses the State's laws, could come from the gods or from men:

Those who speak intelligently should be strengthened by the intelligence common to all, as a city by its laws, and even more strongly. All human laws are nurtured by a divine being that, being superior, controls everything it wishes to; it extends to everyone and everything22.

In this regard, it is also important to mention the orphic23 ideas on justice and law, which are succinctly expressed in three hymns: one to Justice (62), another to equity (dikaiosune) (63) and a final one to nomos (64).

Justice is a goddess who watches everything from above and avenges men's evil deeds, along the same lines as in Hesiod's works24. All order in the world is organised through nomos, but it is only the nomoi of humankind that, thanks to the supernatural influence of Zeus, must follow justice, and this is the difference between men and nature.

The same idea is present in Sophocles' Antigone. In the play, the protagonist decides to bury her brother Polinices, something that has been prohibited by the king, Creon. Antigone is captured and has to confront the king in a dialogue that is usually quoted to demonstrate the presence of a natural-law concept in classical Greek thought:

CREON: And so, you dared to contravene the law?

ANTIGONE: It was not Zeus who enacted it, nor did Dike (Justice), comrade of the underworld gods, ever conceive of such laws among men. Nor did I think your statutes had such power as to allow one man to ignore the unwritten and unchangeable laws of the gods. They have applied not just today or since yesterday, but always; and nobody knows when they originated.25

Antigone defends her conduct in light of the existence of a law of divine origin, emanating from Zeus himself, which has materialised in the goddess Justice and rules human interactions26. This is the law that Antigone obeys. Creon, who tries to abolish it through statutes is a mere tyrant. However, this law is somewhat more complex than that depicted in the works of Hesiod. It comprises a body of unwritten laws whose power is superior to that of the laws of any government27. Coming directly from the gods, they are eternal and immutable28. Many of these characteristics will later become associated with natural law, although Antigone is referring not to a natural body of rules, but rather to a supernatural order imposed on humankind by the gods. The validity of this order therefore depends on the existence and power of the gods. Hesiod's simple ideas on justice have now acquired a different texture, becoming a whole body of laws that supersedes the legislative power of the polis.

The bond between the divine order and the positive law of specific cities, which reinforced their validity, is a constant theme among Greek legislators. For instance, Lycurgus, the Spartan legislator, obtained divine anction for his laws in Delfos29, something that became commonplace among the great reformers of the sixth and fifth centuries BC30.


3. Crisis in traditional thought

During the whole archaic period of Greek culture, the legal order was founded on a supernatural order. Judges in Crete were called kosmoi, for they received from the divine world the inspiration to give their sentences31. Humankind was distinguished from the world of nature and the law of the strongest, and placed in a superior order, governed by Justice. Man had the sacred fire of the gods. This made him unique and superior to animals.

Nevertheless, towards the end of the archaic period the traditional worldview entered a crisis phase, when Greek rationalism refuted the traditional division of the world into natural, human and supernatural orders, and suggested an alternative view. When Thales of Miletus investigated nature, he tried to explain it in causal terms, that is to say, to reduce it to phenomena that might be explained by intrinsic reasons, from which the constant intervention of the gods and their supernatural acts were absent. He therefore regarded equinoxes and solstices not as events related to divinity, but as phenomena that might be explained in causal terms from a strictly natural perspective32. His alleged disciple Anaximander took a further step in this direction by calling the whole natural world a "kosmos"33, an order. In terms of this order, the natural world was not subject to the will of the gods, but governed by the rules of causality, which implied that it was possible to predict events in the world. Thus Anaximandre indicated that the natural world might be "scientifically" studied, which meant, at least to physics scholars, that it was independent of the divine34.

If the Greek traditional worldview is based on the dependence of the natural and human orders on the divine, once the natural world has declared its independence how long will it be before the human world does the same? Will justice as a model of behaviour still be based on a divine law imposed on humans from above? Are we so different from the natural world?35

During the Greco-Persian Wars, the contact of Greek culture with the Eastern Mediterranean increased. Consequently, there was a tendency to compare the mores of the Greeks with those of the rest of the Eastern world. Ionic scholars studied the mores of the Egyptians, the Persians and the Scythians and even exotic people like the Hyperboreans, and made an ethnographical comparison between them. In Herodotus' works we find not only a history of the Greco-Persian wars, but also a detailed account of the physical and human geography of the people of the Eastern Mediterranean. The dependence of mores on climate is discussed36. Montesquieu did the same some centuries later. The variety of mores is studied with impartiality, something that reveals a certain cultural relativism in classical Greece37.

In this context, during the fifth century BC, the contrast between nomos (law) and physis (nature) appears in medical science38. In the Corpus Hipocraticum two works dating from the second half of the fifth century BC - De aere aquis et locis and De morbo sacro -distinguishedphysis, that is nature, from nomos, human convention39. Nature was seen as a given to which the mores - the nomoi - of the people should adapt. Climate (physis) and mores (nomos) would determine the ethnical appearance of people Wie die beiden Faktoren physis und nomos für die Unterschiede der Körpergestalt veranworlich sind40. This idea is clearly stated in De aere aquis et locis at the beginning of chapter 1441:

I'll leave aside minor differences between nations and I'll consider only the large ones that come from nature or law, and I'll begin with the Macrocephalos.

This is followed by a strange description of how a people, through their mores and climate, are able to change the shape of their heads in order to enlarge them. In the following chapters the different nations of Europe and Asia are described. The relationship between climate and laws, which to Herodotus was a mere curiosity, became in the Corpus Hipocraticum a fundamental element in the diagnosis and prevention of disease42.

The first sophists discussed conclusively the ethical and legal consequences of the separation of humankind and divinity. Here the role played by Protagoras (490-421 BC) cannot be overestimated43. Protagoras was born in Abdera c. 490 BC. He was a contemporary - and maybe a disciple - of Democritus44, and led a wandering life, teaching philosophy in different cities in the Greek world. He was a close friend of Pericles45 and spent some time in Athens, from which he was eventually expelled either by a decision of the Assembly or after a trial for impiety. Among his main teachings, he stated that all causes of natural phenomena are to be found in matter46, something that places him among the first materialist philosophers. Regarding the gods, he declared himself an agnostic, for he said that it is impossible to know whether they exist or not47. As far as the theory of knowledge is concerned, he was a relativist, considering that man was the measure of all things48, so there could not be universally valid knowledge. Each man could only build his own truth49. The moral consequence of this statement is quite apparent, for it indicates that there cannot be good or evil, but that each action may be subject to a different moral judgment according to the judge's whim. In this sense, two equally valid discourses will always have to be considered in judging any action. In legal matters, a good lawgiver should consider what is useful for the community and convince it that what is useful is also just50. The legal perspective of Protagoras was surprisingly similar to nineteenth-century utilitarianism51 and, because of his close relations with Athenian elite, had important practical consequences in the Peloponnesian War.

The Melian dialogue, reported by Thucydides, may be a quite literal transcription of the arguments raised during the Athenian invasion of Melos, when Protagoras' ideas and the traditional concept of justice were debated. During the Peloponnesian War (431-404 BC), Athenian forces invaded the island of Melos (or Milos) in order to force it to abandon the Spartan alliance and submit to the power of Athens. Before the siege, there was a parley between the leaders of the Athenian forces and the Melians, in which the right of Athens to demand submission - not mere neutrality - was debated. In the dialogue, the Athenians demanded that the debate should focus on what was in the interests of Melos - that is to say, whether they should submit to Athens or be utterly destroyed - for between the weak and the strong there could not be considerations of justice52. Justice was removed from the dialogue and its place taken by utility. The Athenians argued that natural law supported their aggression: the law of the strongest53, which they had not created nor could change. In short, once the gods and their supernatural law were removed from the human order, there was no longer a difference between man and other animals and he was again subject to natural law, like the nightingale in the claws of the hawk.

Plato attributes the most brutal exposition of this natural law to Thrasymachus, a sophist and rhetorician of whom we know practically nothing, apart from his rather unpleasant statement mentioned in the Republic. In this work, Thrasymachus interrupts a dialogue between the main characters and suggests they ask him what he believes justice to be. Once he convinces them to put the question, he gives them this answer:

Well, listen. I say that justice is nothing more than what is useful to the strongest. Why don't you applaud? I knew you wouldn't!54

In the face of Socrates' perplexity, he explains his ideas:

Do not all people make laws for their own benefit, the democrats, democratic laws, the tyrant, tyrannical ones and so on? Once these laws are passed, do they not declare that justice for the governed is to follow them? Are trespassers who are guilty of an unjust action not punished? Here is my opinion. In every state, Justice is no more than the utility of the one who holds power and is therefore the strongest. It follows that to any man who has reason, Justice and what is useful to the strongest are always and everywhere the same55.


4. Aristotle

The Thrasymachus thesis, that justice was the law of the strongest, completed the fusion of the human and natural orders after the final breakdown of divinity. Men were not different from animals, law derived from brute force and what was called justice was only a mask used by the powerful to cover up their deeds. As it was among hawks, so it was between men. Socrates' refutation was only a nicety, and the Thrasymachus thesis continued to be a bitter sediment in the Republic. In a world suffering from political decomposition, where the fundamental political unit, the polis - today the National State - is always incapable of guaranteeing the independence of its citizens in the face of powerful external threats, as exemplified by Philip of Macedonia, the diadochi kings and later Rome, politics, through the Thrasymachus thesis, show its hobbesian face by transforming brute force into law.

In this context, Aristotle was able to invert the terms, giving a new meaning to natural justice as a rational entity that was independent of the cultural or religious values of any particular community. Aristotle, at the beginning of his Politics, defines men as social and rational animals, which fundamentally changes their relationship with nature:

The reason for men to be social, more so than any being or gregarious animal, is clear. Nature, as we say, does nothing in vain. Only men, among animals, have speech. The voice is a sign of pain or pleasure, which is why other animals also have it. (Their nature has allowed them to have the sensation of pain and pleasure and show each other these sensations). However, speech exists to show what is convenient and harmful, and what is just and unjust. And it is unique to man, unlike other animals, who possesses, a sense of good and evil, of the just and unjust, etc. From this community the family house and the polis are born56.

Man is a rational being who has language in order to socialise with other men. Human nature is different from animal nature, for it possesses, through reason, a sense of justice that is natural to it and therefore, innate. Political life is founded on this rational natural justice; and this is the difference between men and animals, which are bound to the law of the strongest. In this sense, there is a natural justice and therefore a natural law that is valid everywhere, beyond mere conventional justice:

Political justice is partly natural and partly legal. That which has the same strength everywhere and does not depend upon our approval or disapproval is the natural part. What in principle is indifferent, such as paying a mine to rescue a prisoner or to sacrifice a goat and not two sheep is the legal part, as are arrangements for specific cases, like offering a sacrifice in honour of Brasidas, and things ordered by regulations. It seems to some that all law is merely legal. They argue that nature is immutable and has the same strength everywhere, like fire, that burns in the same way here or in Persia, but, on the contrary, in the human order we see things that are considered just change. Things do not happen precisely this way, although in a certain sense they do. Although among gods there might be no change at all, among us everything is by nature subject to change. This does not prevent some things from being natural and others not57.

This concept of natural justice as rational justice, constructed without the aid of religious values, which opposes the law of the strongest, continued through Roman law58 and into modern rationalism and forms the foundation of a group of rights, namely modern human rights, which every State must respect and which limit sovereignty.



* This article is part of the Conicyt Research Project Anillos de Instigación Asociativa SOC 1111.
1 This article originated from a discussion I held with Professor Laurens Winkel in Santiago de Chile while commenting on his brilliant work on natural law. Eventually, it became a paper that I presented at a conference in Rosario, Argentina, in May 2013, which was completed thanks to my good friend Javier Rodríguez. I dedicate this work to Laurens' friendship.
2 The Declaration of the Rights of Man and Citizen of 1789 expressly appeals to natural rights (Arts. II and IV). Although the concept of human rights has evolved (See Casavola, Francesco Paolo, Fondamento giuridico dei diritti umani in Sententia legum tra mondo antico e moderno (Napoli, 2004) 3, pp. 77-89), its origin is related to natural law.
3 See Polacek, Adalbert, "Human Rights. The Secret Legacy of Antiquity" in Roset Esteve, Jaime (Coord.) Estudios en homenaje a Juan Iglesias, Universidad Complutense (Madrid, 1988) v. II pp. 1009-1021;         [ Links ] Mits is, Phillip, "Stoic Origin of Natural Rights in Topics" in Stoic Philosophy (Ierodiakonou, Katerina, ed.) (Oxford, 1999) pp. 153-177;         [ Links ] Honoré, Tony, "Les droits de l'homme chez Ulpien" in Le monde antique et les droits del'homme (Jones, H., ed.) (Brussels, 1998) pp. 235243;         [ Links ] Crifo, Giuliano, "Per una prospettiva romanistica dei diritti dei uomo" in Menschenrechte und europäische Identität - Die antiken Grundlagen (Giradet, Klaus M., Nortmann, Ulrich eds.) (Stuttgart, 2005) pp. 240-269.         [ Links ]
4 Mcclelland, J.S., A History of Western Political Thought (New York, 2005), Kindle edition, L. 302 ff.         [ Links ]
5 Senn, Félix, "De l'influence grecque sur le droit romain de la fin de la république" in Atti del congresso internazionale di diritto romano (Bologna e Roma XVIII-XXVII Aprile MCMXXXIII) Roma, (Pavia, Fussi, 1934) v. I pp. 99-110;         [ Links ] Coing, Helmut "Naturrecht als wissenschaftliches Problem" in Gesammelte Aufsätze zu Rechtgeschichte, Rechtsphilosophie und Zivilrecht 1947-1975 b. 2 (Frankfurt-am-Main, 1982) pp. 23-49; Winkel,         [ Links ] Laurens C., "Die stoische oikeiosis-Lehre und Ulpians Definition der Gerechtigkeit" in ZS (Rom. Abt.) 108 (1988) pp. 669-679 and Winkel,         [ Links ] Laurens "Le droit romain et la philosophie grecque, quelques problems de methode" in TvR 65 (1997) pp. 373-384.
6 There has been much debate about this during the last ten years, for some scholars believe that in some way the Roman concept of humanitas implied the notion of human rights. See Gaudemet, Jean, "Des droits de l'homme ont-ils été reconnus dans l'empire romain?" in Labeo 33 (1987) pp. 7-23; Gaudemet, Jean, "Des droits de l'homme dans l'antiquité?" in Collatio iuris romani, études dédiées á Hans Ankum á la occasion de son 65e anniversaire (Amsterdam, 1995) v. I pp. 105-115; Gaudemet, Jean, "Le monde antique et les droits de l'homme. Quelques observations" in (Jones, H., ed.) (n. 3) pp. 175-183; Fabre, Paul, "Droits de l'homme et respect de la dignité humaine en Grèce antique" in Le monde antique et les droits de l'homme, actes de la 50 session de la société internationale Fernand de Visscher pour l'histoire des droits de l'antiquité, (Bruxelles, 1996) pp. 155-168. Bauman even translates the expression ius humanum as human rights. See Bauman, Richard, Human Rights in Ancient Rome (London, New York, 2000) p. 29.         [ Links ] Obviously this is questionable, for even the most cultivated emperors had little consideration for the humanity of slaves or gladiators, whose death was a form of mass entertainment. See Robinson, Olivia, "Crime and Punishment and Human Rights in Ancient Rome" in (Jones, H., ed.) (n. 3) pp. 325-334. Although the notion of humanitas implies a certain universality and holiness in human life (see Riccobono, Salvatore "L'idea di humanitas come fonte di progresso del diritto" in Studi in onore di Biondo Biondi (Milano, 1965) v. II, pp. 585-614), and did inspire some legal decisions, it was not a legal concept and did not occupy a central place in the concept of the political order, as human rights do, so that it cannot be considered as the equivalent of modern human rights. It lacks "une référence á l'universel humaine á laquelle rattacher les droits de la personne en tant que personne" (Haarscher, Guy, "Le monde antique et les droits de l'homme" in (Jones, H., ed.) (n. 3) pp. 197-208). And although some jurists of the third century even recognised in humanitas an element that was able to "tempérer la rigueur du droit" (Gaudemet, Jean, "Des droits de l'homme dans l'antiquité?" in Collatio iuris romani, études dédiées á Hans Ankum á la occasion de son 65e anniversaire (Amsterdam, 1995) v. I p. 110), the basic inequality of men, divided into free and slave, sui iuris and alieni iuris, citizens and foreigners, still determined the treatment of personae in Rome, to the point that Gaius used those divisions as the basis for his Institutes.
7 McClelland, J.S., A History (n. 4) L. 192-195.
8 Gigante, Marcello, Nomos Basileus (Napoli, 1959) p. 47.
9 See Lesky, Albin, Historia de la literatura Griega, (Madrid, 1989) pp. 115-130.
10 War, in the eyes of the author of Works and the Days, does not seem to be the glorious work depicted in the Homeric poems, but a damnation caused by injustice. When justice is accomplished. peace is the reward: Hesiodus, Opera et dies, 228:
ειρήνη δ' άνα γην κουροτρόφος, ουδέ ποτ' αύτοις ργαλέον πόλεµον τεκµαίρεται εύρύοπα Ζεύς (Peace is on earth and Zeus, who sees beyond earth, never causes war).
11 The leaders are directly accused of corruption and called dorofagos, that is present eaters. (Hesiodus, Opera et dies, 38).
12 Hesiodus, Opera et dies, 248:
ώ βασιλης, ύµεις δε καταφράζεσθε και αύτοι τήνδε δίκην: εγγύς γαρ έν άνθρώποισιν έόντες άθάνατοι φράζονται, οσοι σκολιησι δίκησιν άλλήλους τρίβουσι θεών οπιν ούκ άλέγοντες. τρις γαρ µύριοί εισιν έπι χθονι πουλυβοτείρη άθάνατοι Ζηνος φύλακες θνητών άνθρώπων: οι ρα φυλάσσουσίν τε δίκας και σχέτλια εργα
13 Gigante, Marcello, Nomos Basileus (n. 8) pp. 19-20.
14 Hesiodus, Opera et dies, 207-212:
δαιµονίη, τί λέληκας; εχει νύ σε πολλον άρείων: τη δ' εις, ή σ' άν εγώ περ άγω και άοιδον έουσαν: δειπνον δ', αι κ' έθέλω, ποιήσοµαι ήε µεθήσω. άφρων δ', ος κ' έθέλη προς κρείσσονας άντιφερίζειν: νίκης τε στέρεται πρός τ' αισχεσιν άλγεα πάσχει.
15 Hesiodus, Opera et dies, 274-285:
τόνδε γαρ άνθρώποισι νόµον διέταξε Κρονίων ιχθύσι µεν και θηρσι και οιωνοις πετεηνοις έσθέµεν άλλήλους, έπει ου δίκη έστι µετ' αυτοις: άνθρώποισι δ' εδωκε δίκην, η πολλον άρίστη γίγνεται: ει γάρ τίς κ' έθέλη τα δίκαι' άγορευσαι γιγνώσκων, τω µέν τ' ολβον διδοι ευρύοπα Ζεύς: ος δέ κε µαρτυρίησι έκών έπίορκον όµόσσας ψεύσεται, έν δε δίκην βλάψας νήκεστον άασθη, του δέ τ' άµαυροτέρη γενεή µετόπισθε λέλειπται: άνδρος δ' ευόρκου γενεή µετόπισθεν άµείνων.
16 Gigante, Marcello, Nomos Basileus (n. 8) p. 25.
17 On the matter, Heinimann comments: "Man hat mit Recht betont dass diké und nomos hier scharf zu trennen sind. Denn nicht nur die Menschen haben ja ihren nomos, sondern auch die Tiere die keine diké kennen ...": Heinimann, Felix, Nomos und Physis. Herkunft und Bedeutungeiner Antithese im griechischen Denken des 5. Jahrhunderts (Basel, 1945) p. 61.
18 Hesiodus, Opera et dies, 248-251:
ώ βασιλης, ύµεις δε καταφράζεσθε και αυτοι τήνδε δίκην: έγγυς γαρ έν άνθρώποισιν έόντες άθάνατοι φράζονται, οσοι σκολιησι δίκησιν άλλήλους τρίβουσι θεών οπιν ουκ άλέγοντες.
19 On the matter Gigante says: "L'ammistrazione della retta giustizia è possesso di dio ... La concezione di Zeus supremo vindice di giustizia è svolta tanto nella Teogonia che negli Erga": Gigante, Marcello, Nomos Basileus (n. 8) p. 19.
20 See Coing, Helmut Naturrecht (n. 5) p. 23; Boucher, David, The Priority of Law and Morality: the Greeks and the Stoics in Political Theories of International Relations, (New York, Oxford, 1998) pp. 171-190 and Martens,         [ Links ] John W., One God, One Law: Philo of Alexandria on the Mosaic and Greco-Roman Law (Leiden, 2003) p. 22.         [ Links ]
21 (B114). For an analysis see Heinimann, Felix, Nomos und Physis (n. 17) pp. 65 ff. and Gigante, Marcello, Nomos Basileus (n. 8) pp. 50 ff.
ξυν νω λέγοντας ισχυρίζεσθαι χρη τω ξυνω πάντων, οκωσπερ νόµω πόλις, και πολύ ισχυροτέρως. τρέφονται γαρ πάντες οί άνθρώπειοι νόµοι ύπό ενός του θείου· κρατεί γαρ τοσουτον όκόσον έθέλει και έξαρκεί πασι και περιγίνεται.
23 On the orphics and their relation with Heraclitus and Pindarus see Heinimann, Felix, Nomos und Physis (n. 17) pp. 67 ff. and Gigante, Marcello, Nomos Basileus (n. 8) pp. 54 ff.
24 Heinimann, Felix, Nomos und Physis (n. 17) p. 70.
25 Sophocles, Antigonae, 449-457:
Κρέων και δητ' έτόλµας τούσδ' ύπερβαίνειν νόµους; Αντιγόνη ου γάρ τί µοι Ζευς ήν ό κηρύξας τάδε, ούδ' ή ξύνοικος των κάτω θεών Δίκη τοιούσδ' έν άνθρώποισιν ωρισεν νόµους. ούδε σθένειν τοσοΰτον φόµην τα σα κηρύγµαθ', ωστ' άγραπτα κάσφαλη θεών νόµιµα δύνασθαι θνητόν ονθ' ύπερδραµειν. ού γάρ τι νΰν γε κάχθές, άλλ' άεί ποτε ζη ταΰτα, κούδεις οιδεν έξ οτου 'φάνη.
26 Pohlenz, Max, Nomos und Physis in Kleine Schriften (De Vries, Jan, ed.) (Hildesheim. 1965) v. II pp. 351-352.
27 Apparently, this is the oldest attestation of unwritten laws. See Martens, John W., One God, One Law (n. 20) p. 28.
28 In this sense, Fabre says that in Ancient Greece law was founded on man's dignity, but "Le fondement de cette dignité est religieuxFabre, Paul, Droits de l'homme (n. 6) p. 155.
29 So says Plutarch, who adds that the Pythia would have named him a god among men: Plutarcus, Lycurgus, 5.3.1-5.3.7.
30 See MacDowell, Douglas M., The Law in Classical Athens, (Cornell, New York, 1978), pp. 41 ff.         [ Links ]
31 The inscription from Dreros GHI 2 (c. 650 BC) is very expressive in this sense. See Von Reden, Sitta, Money in Classical Antiquity (Cambridge, Kindle edition, 2010) L. 689 ff.
32 He seems to have written two works on the problem (D. Laertius 1,23).
33 Plutarcus, Stromata 145.179.9-13.
34 See Heinimann, Felix, Nomos und Physis (n. 17) pp. 43 ff.
35 See Schiavone, Aldo, The Invention of Law in the West, (Harvard, Cambridge, 2012) pp. 292-293.
36 Heinimann, Felix, Nomos und Physis (n. 17) pp. 23 ff.
37 Heinimann, Felix, Nomos und Physis (n. 17) pp. 78-80.
38 Heinimann, Felix, Nomos und Physis (n. 17) pp. 11 ff.; Pohlenz, Max, Nomos und Physis (n. 26) pp. 341-346.
39 Gigante, Marcello, Nomos Basileus (n. 8) p. 14; Pohlenz, Max, Nomos und Physis (n. 26) pp. 346347.
40 Heinimann, Felix, Nomos und Physis (n. 17) p. 16.
και όκόσα µεν όλίγον διαφέρει τών έθνέων παραλείψω,όκόσα δε µεγάλα η φύσει η νόµω, έρέω περι αυτών ώς εχει. και πρώτον περι τών Μακροκεφάλων.
42 Heinimann says: "Während Völkerbeschreibung für Herodot weitgehend Selbzweck ist, dient sie dem Hippokratiker nur als Beweismaterial für seine These vom Einfluss des Klimas auf die Menschen in ihrer körperlichen und geistigen Konstitution": Heinimann, Felix, Nomos und Physis (n. 17) p. 24.
43 Nevertheless, the sophistic theory of nomos and physis may have appeared before Protagoras, in the works of Archelaos and Hippias. See Heinimann, Felix, Nomos und Physis (n. 17) pp. 100-114 and Pohlenz, Max, Nomos und Physis (n. 26) v. II p. 356.
44 On the relation between Archelaos, Democritus and Protagoras see Heinimann, Felix, Nomos und Physis (n. 17) p. 148.
45 Plutarch even described them debating liability for an accidental event. See Plutarcus, Pericles, 36.
46 Sextus Empiricus, Pyrrhoniae hypotyposes, 1.216 ff.
47 Philostratus,Vitae sophistarum, 1.10.
48 Plato, Cratylus, 385e and Aristoteles, Metaphysica, 9.6, 1062b.10-13.
49 Sextus Empiricus, Pyrrhoniae hypotyposes, 1.216. In this sense, the ethical ideas of Protagoras are related with ionic relativism. In Heinimann's words, nomos means Menschenmeinung: Heinimann, Felix, Nomos und Physis (n. 17) p. 119. On the concept of nomos as a convention see, also, Martens, John W., One God, One Law (n. 20) pp. 22-23.
50 Plato, Theaetetus, 167c.2.
51 On utilitarianism in antiquity see Waldstein, Wolfgang, Natural Law and the Defence of Life in Evangelium Vitae in Evangelium Vitae. Five Years of Confrontation with Society Libreria Editrice Vaticana, (Vaticano, 2000) pp. 225-230.
52 Thucydides, Historiae,
53 Thucydides, Historiae, 5.105.2.
54 Plato, Respublica, 338.c.1-3:
άκουε δή, ή δ' ος. φηµι γαρ έγώ είναι το δίκαιον ούκ άλλο τιη το τοΰ κρείττονος συµφέρον. άλλα τί ούκ έπαινεις; άλλ'ούκ έθελήσεις.
55 Plato, Respublica, 338.e.1-4:
τίθεται δέ γε τους νόµους έκάστη ή άρχή προς το αύτησυµφέρον, δηµοκρατία µεν δηµοκρατικούς, τυραννις δετυραννικούς, και αί άλλαι οΰτως: θέµεναι δε άπέφηναντοΰτο δίκαιον τοις άρχοµένοις είναι, το σφίσι συµφέρον.
56 Aristoteles, Politica, 1253a.9-17:
λόγον δε µόνον άνθρωπος εχει τών ζφων: ή µεν ουν φωνή τοΰλυπηροΰ και ήδέος έστι σηµειον, διο και τοις άλλοις ύπάρχειζφοις (µέχρι γαρ τούτου ή φύσις αύτών έλήλυθε, τοΰ εχειναισθησιν λυπηροΰ και ήδέος και ταΰτα σηµαίνεινάλλήλοις),ό δε λόγος έπι τω δηλοΰν έστι το συµφέρον και το βλαβερόν, ωστε και το δίκαιον και το άδικον: τοΰτογαρ προς τα άλλα ζωα τοις άνθρώποις ιδιον, το µόνονάγαθοΰ και κακοΰ και δικαίου και άδίκου και τών άλλωναισθησιν εχειν: ή δε τούτων κοινωνία ποιει οικίαν και πόλιν.
57 Aristoteles, Ethica Nicomachea, 1134b.18-26:
τοΰ δε πολιτικοΰ δικαίου το µενφυσικόν έστι το δε νοµικόν, φυσικον µεν το πανταχοΰ τήναύτήν εχον δύναµιν, και ού τω δοκειν η µή, νοµικον δε ο έξάρχης µεν ούδεν διαφέρει ούτως η άλλως, οταν δε θώνται, διαφέρει, οίον το µνας λυτροΰσθαι, η το αίγα θύειν άλλαµή δύο πρόβατα, ετι οσα έπι τών καθ' εκαστα νοµοθετοΰσιν,οίον το θύειν Βρασίδα, και τα ψηφισµατώδη. δοκει δ' ένίοιςείναι πάντα τοιαΰτα, οτι το µεν φύσει άκίνητον καιπανταχοΰ τήν αύτήν εχει δύναµιν, ωσπερ το πΰρ καιένθάδε και έν Πέρσαις καίει, τα δε δίκαια κινούµεναόρώσιν. τοΰτο δ' ούκ εστιν ούτως εχον, άλλ' εστιν ως: καίτοιπαρά γε τοις θεοις ισως ούδαµώς, παρ' ήµιν δ' εστι µέν τικαι φύσει, κινητον µέντοι παν, άλλ' οµως έστι το µεν φύσειτο δ' ού φύσει.
58 Traditionally, the influence of the Stoa in the formation of the concept of ius naturale has been stressed. Nevertheless, Winkel has demonstrated the profound reception of Aristotelian thought in Ulpian's definition of justice and natural law. See Winkel, Laurens, Die stoiche (n. 5) pp. 669-679.

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