Encyclopedic Liberty. Jean Le Rond d'Alembert
earth; that it is absurd to make others desire what one desires; that it is uncertain that the peril in which he places his fellow man is equal to the one to which he really wishes to be exposed; that what he allows to chance cannot be of proportionate value compared to what he forces me to chance; that the question of natural rights is much more complicated than it appears to him; that he appoints himself as judge and plaintiff, and that this matter would certainly not fall within the competence of his court.
(6) But if we take away from the individual the right of deciding about the nature of right and wrong, where shall we place this great question? Where? Before the entire human race; for only they may decide the issue, since the good of all is the only passion they have, particular wills are suspect; they can be good or evil, but the general will is always good: it is never wrong, it never will be wrong. If animals were on an approximate level with us, if there were certain means of communication between them and us, if they were able to convey clearly their feelings and thoughts and know ours with the same clarity: in a word, if they were able to vote in a general assembly, it would be necessary to summon them there, and the cause of natural rights would no longer be pleaded before humanity but before the animal kingdom [animalité]. But animals are separated from us by invariable and eternal barriers; and it is a question here of a category of knowledge and ideas peculiar to mankind which emanate from its dignity and which constitute it.
(7) It is to the general will that the individual must address himself to know up to what point he must be a man, a citizen, a subject, a father, a child, and when it is suitable to live or to die. The general will determines
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the limits of all duties. You have the most sacred natural rights in everything that is not contested by the entire species. They will enlighten you on the nature of your thoughts and your desires. Everything that you will conceive, everything that you will contemplate will be good, noble, exalted, and sublime if it is in the general and common interest. The only essential quality in your species is what you demand from all your fellow men for your happiness and for theirs. It is this conformity of you with all of them and all of them with you that will mark you when you go beyond or stay within the limits of your species. Therefore never lose sight of it; otherwise you will see the notions of benevolence, justice, humanity, and virtue blurred in your understanding. Say often to yourself: I am a man, and I do not have any other truly inalienable rights than those of humanity.
(8) But you will say to me, where is the depository of this general will? Where could I consult it? In the principles of law written by all civilized nations; in the social practices of savage and barbaric peoples; in the tacit conventions between enemies of mankind among themselves; and even in the feelings of indignation and resentment, these two passions which nature seems to have placed even in animals to compensate for the deficiency of laws in society and the blemish of public vengeance.
(9) If you therefore meditate carefully on the foregoing, you will remain convinced: (i) that the man who listens only to his particular will is the enemy of the human race; (ii) that the general will in each individual is a pure act of understanding that reasons in the silence of the passions about what man can demand of his fellow man and about what his fellow man can rightfully demand of him; (iii) that this consideration of the general will of the species as well as the common desire is the rule of conduct relating one individual to another in the same society, one individual to the society of which he is a member, and the society of which he is a member to other societies; (iv) that the submission to the general will is the bond of all societies, without excluding those formed by crime (alas! virtue is so beautiful that thieves respect its image in the very center of their dens!); (v) that the laws must be made for all and not for one, otherwise this solitary being would resemble the violent reasoner whom we have stifled in section 5; (vi) that since of the two wills, the one general and the other particular, the general will never falls into error, it is not difficult to see on which one,
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for the happiness of the human race, the legislatures ought to depend, and what veneration we owe the august mortals whose particular wills reunite both the authority and the infallibility of the general will; (vii) that if one were to assume the notion of the species being in perpetual flux, the nature of natural rights would not change, since it would always be related to the general will and to the common desire of the entire species; (viii) that equity is to justice as cause is to its effect, or that justice cannot be anything else than declared equity; (ix) that all these inferences are evident to the person who reasons, and that the person who does not wish to reason, renouncing his human condition, must be treated as an unnatural being.
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This article is by Boucher d’Argis; in the third volume of the Encyclopédie, he is introduced to the readers in the following terms: “Thanks to the care of M. Boucher d’Argis, well known for his excellent works, jurisprudence, which is unfortunately a necessary science as well as an extensive one, will now appear in the Encyclopédie with all the detail it deserves.” The article on natural law is the second one on this topic in the Encyclopédie. The article which precedes this, entitled simply “Natural Right” (Droit Naturel), is by Diderot. Whereas Diderot’s article deals extensively with the moral issues involved and presents his personal views on justice, good, evil, and general will, the present article approaches the problem essentially from a historical point of view and offers a good introduction to the main authorities to whom eighteenth-century thinkers turned for definitions of natural law.
LAW OF NATURE, OR NATURAL LAW, in its broadest sense, is taken to designate certain principles which nature alone inspires and which all animals as well as all men have in common. On this law are based the union of male and female, the begetting of children as well as their education, love of liberty, self-preservation, concern for self-defense.
It is improper to call the behavior of animals natural law, for, not being endowed with reason, they can know neither law nor justice.
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More commonly we understand by natural law certain laws of justice and equity which only natural reason has established among men, or better, which God has engraved in our hearts.
The fundamental principles of law and all justice are: to live honestly, not to give offense to anyone, and to render unto each whatever is his. From these general principles derive a great many particular rules which nature alone, that is, reason and equity, suggest to mankind.
Since this natural law is based on such fundamental principles, it is perpetual and unchangeable: no agreement can debase it, no law can alter it or exempt anyone from the obligation it imposes. In this it differs from positive law, meaning those rules which only exist because they have been established by precise laws. This positive law is subject to change by right of the same authority that established it, and individuals can deviate from it if it is not too strict. Certain people improperly mistake natural law for the law of nations. This latter also consists in part of rules which true reason has established among all men; but it also contains conventions established by men against the natural order, such as wars or servitude, whereas natural law admits only what conforms to true reason and equity.
The principles of natural law, therefore, form part of the law of nations, particularly the primitive law of nations; they also form part of public and of private law: for the principles of natural law, which we have stated, are the purest source of the foundation of most of private and public law. But public and private law contain rules based on positive laws. See LAW OF NATIONS, POSITIVE LAW, PUBLIC LAW, PRIVATE LAW (Droit des Gens, Droit Positif, Droit Public, Droit Privé). From these general ideas on natural law it becomes clear that this law is nothing other than what the science of manners and customs calls morality.
This science of manners or of natural law was known only imperfectly to the ancients; their wise men and their philosophers have spoken of it most often