Although he did not directly address the political conditions of England in Leviathan, Hobbes clearly thought that its message was essential to restore peace and order in his country. But Hobbes also had other ambitions in writing Leviathan. As his preface suggests, Hobbes was attracted to the new mechanical natural philosophy (science). Rational and deductive in his approach, Hobbes sought to place the study of government on the kind of firm scientific foundation that he believed Galileo had done for the study of matter in motion.
1. What are the laws and the rights of nature?
2. How do humans exit from the state of nature? Who is party to the covenant, or social contract? What are its terms?
3. What are the powers and rights of an established sovereign? What are the limits to a sovereign's powers?
4. What are the rights and liberties of subjects? What are the limits to the subjects' rights and liberties?
5. What is the relationship between natural and civil law in an established society?
 By liberty is understood, according to the proper signification of the word, the absence of external impediments; which impediments may oft take away part of a man's power to do what he would, but cannot hinder him from using the power left him according as his judgement and reason shall dictate to him.
 A law of nature, lex naturalis, is a precept, or general rule, found out by reason, by which a man is forbidden to do that which is destructive of his life, or taketh away the means of preserving the same, and to omit that by which he thinketh it may be best preserved. For though they that speak of this subject use to confound jus and lex, right and law, yet they ought to be distinguished, because right consisteth in liberty to do, or to forbear; whereas law determineth and bindeth to one of them: so that law and right differ as much as obligation and liberty, which in one and the same matter are inconsistent.
 And because the condition of man (as hath been declared in the precedent chapter) is a condition of war of every one against every one, in which case every one is governed by his own reason, and there is nothing he can make use of that may not be a help unto him in preserving his life against his enemies; it followeth that in such a condition every man has a right to every thing, even to one another's body. And therefore, as long as this natural right of every man to every thing endureth, there can be no security to any man, how strong or wise soever he be, of living out the time which nature ordinarily alloweth men to live. And consequently it is a precept, or general rule of reason: that every man ought to endeavour peace, as far as he has hope of obtaining it; and when he cannot obtain it, that he may seek and use all helps and advantages of war. The first branch of which rule containeth the first and fundamental law of nature, which is: to seek peace and follow it. The second, the sum of the right of nature, which is: by all means we can to defend ourselves.
 From this fundamental law of nature, by which men are commanded to endeavour peace, is derived this second law: that a man be willing, when others are so too, as far forth as for peace and defence of himself he shall think it necessary, to lay down this right to all things; and be contented with so much liberty against other men as he would allow other men against himself. For as long as every man holdeth this right, of doing anything he liketh; so long are all men in the condition of war. But if other men will not lay down their right, as well as he, then there is no reason for anyone to divest himself of his: for that were to expose himself to prey, which no man is bound to, rather than to dispose himself to peace. This is that law of the gospel: Whatsoever you require that others should do to you, that do ye to them. And that law of all men, quod tibi fieri non vis, alteri ne feceris (do not do unto others what you do not want done to yourself).
 To lay down a man's right to anything is to divest himself of the liberty of hindering another of the benefit of his own right to the same. For he that renounceth or passeth away his right giveth not to any other man a right which he had not before, because there is nothing to which every man had not right by nature, but only standeth out of his way that he may enjoy his own original right without hindrance from him, not without hindrance from another. So that the effect which redoundeth to one man by another man's defect of right is but so much diminution of impediments to the use of his own right original.
 Right is laid aside, either by simply renouncing it, or by transferring it to another. By simply renouncing, when he cares not to whom the benefit thereof redoundeth. By transferring, when he intendeth the benefit thereof to some certain person or persons. And when a man hath in either manner abandoned or granted away his right, then is he said to be obliged, or bound, not to hinder those to whom such right is granted, or abandoned, from the benefit of it: and that he ought, and it is duty, not to make void that voluntary act of his own: and that such hindrance is injustice, and injury, as being sine jure; the right being before renounced or transferred. So that injury or injustice, in the controversies of the world, is somewhat like to that which in the disputations of scholars is called absurdity. For as it is there called an absurdity to contradict what one maintained in the beginning; so in the world it is called injustice, and injury voluntarily to undo that which from the beginning he had voluntarily done. The way by which a man either simply renounceth or transferreth his right is a declaration, or signification, by some voluntary and sufficient sign, or signs, that he doth so renounce or transfer, or hath so renounced or transferred the same, to him that accepteth it. And these signs are either words only, or actions only; or, as it happeneth most often, both words and actions. And the same are the bonds, by which men are bound and obliged: bonds that have their strength, not from their own nature (for nothing is more easily broken than a man's word), but from fear of some evil consequence upon the rupture.
 Whensoever a man transferreth his right, or renounceth it, it is either in consideration of some right reciprocally transferred to himself, or for some other good he hopeth for thereby. For it is a voluntary act: and of the voluntary acts of every man, the object is some good to himself. And therefore there be some rights which no man can be understood by any words, or other signs, to have abandoned or transferred. As first a man cannot lay down the right of resisting them that assault him by force to take away his life, because he cannot be understood to aim thereby at any good to himself. The same may be said of wounds, and chains, and imprisonment, both because there is no benefit consequent to such patience, as there is to the patience of suffering another to be wounded or imprisoned, as also because a man cannot tell when he seeth men proceed against him by violence whether they intend his death or not. And lastly the motive and end for which this renouncing and transferring of right is introduced is nothing else but the security of a man's person, in his life, and in the means of so preserving life as not to be weary of it. And therefore if a man by words, or other signs, seem to despoil himself of the end for which those signs were intended, he is not to be understood as if he meant it, or that it was his will, but that he was ignorant of how such words and actions were to be interpreted.
 The mutual transferring of right is that which men call contract. . . .
 In contracts the right passeth, not only where the words are of the time present or past, but also where they are of the future, because all contract is mutual translation, or change of right; and therefore he that promiseth only, because he hath already received the benefit for which he promiseth, is to be understood as if he intended the right should pass: for unless he had been content to have his words so understood, the other would not have performed his part first. And for that cause, in buying, and selling, and other acts of contract, a promise is equivalent to a covenant, and therefore obligatory.
 As justice dependeth on antecedent covenant; so does gratitude depend on antecedent grace; that is to say, antecedent free gift; and is the fourth law of nature, which may be conceived in this form: that a man which receiveth benefit from another of mere grace endeavour that he which giveth it have no reasonable cause to repent him of his good will. . . .
 A fifth law of nature is complaisance; that is to say, that every man strive to accommodate himself to the rest. . . .
 A sixth law of nature is this: that upon caution of the future time, a man ought to pardon the offences past of them that, repenting, desire it. . . .
 A seventh is: that in revenges (that is, retribution of evil for evil), men look not at the greatness of the evil past, but the greatness of the good to follow. Whereby we are forbidden to inflict punishment with any other design than for correction of the offender, or direction of others. For this law is consequent to the next before it, that commandeth pardon upon security of the future time. . . .
 On this law dependeth another: that at the entrance into conditions of peace, no man require to reserve to himself any right which he is not content should he reserved to every one of the rest. As it is necessary for all men that seek peace to lay down certain rights of nature; that is to say, not to have liberty to do all they list, so is it necessary for man's life to retain some: as right to govern their own bodies; enjoy air, water, motion, ways to go from place to place; and all things else without which a man cannot live, or not live well. . . .
 The laws of nature oblige in foro interno (in the internal forum), that is to say, they bind to a desire they should take place; but in foro externo, that is, to the putting them in act, not always. For he, that should be modest and tractable, and perform all he promises, in such time and place where no man else should do so, should but make himself a prey to others, and procure his own certain ruin, contrary to the ground of all laws of nature, which tend to nature's preservation. And again, he that having sufficient security, that others shall observe the same laws towards him, observes them not himself, seeketh not peace, but war, and consequently the destruction of his nature by violence.
 THE final cause, end, or design of men (who naturally love liberty, and dominion over others) in the introduction of that restraint upon themselves, in which we see them live in Commonwealths, is the foresight of their own preservation, and of a more contented life thereby; that is to say, of getting themselves out from that miserable condition of war which is necessarily consequent, as hath been shown, to the natural passions of men when there is no visible power to keep them in awe, and tie them by fear of punishment to the performance of their covenants, and observation of those laws of nature set down in the fourteenth and fifteenth chapters.
 For the laws of nature, as justice, equity, modesty, mercy, and, in sum, doing to others as we would be done to, of themselves, without the terror of some power to cause them to be observed, are contrary to our natural passions, that carry us to partiality, pride, revenge, and the like. And covenants, without the sword, are but words and of no strength to secure a man at all. Therefore, notwithstanding the laws of nature (which every one hath then kept, when he has the will to keep them, when he can do it safely), if there be no power erected, or not great enough for our security, every man will and may lawfully rely on his own strength and art for caution against all other men. . . .
 It is true that certain living creatures, as bees and ants, live sociably one with another (which are therefore by Aristotle numbered amongst political creatures), and yet have no other direction than their particular judgements and appetites; nor speech, whereby one of them can signify to another what he thinks expedient for the common benefit: and therefore some man may perhaps desire to know why mankind cannot do the same. To which I answer,
 First, that men are continually in competition for honour and dignity, which these creatures are not; and consequently amongst men there ariseth on that ground, envy, and hatred, and finally war; but amongst these not so.
 Secondly, that amongst these creatures the common good differeth not from the private; and being by nature inclined to their private, they procure thereby the common benefit. But man, whose joy consisteth in comparing himself with other men, can relish nothing but what is eminent.
 Thirdly, that these creatures, having not, as man, the use of reason, do not see, nor think they see, any fault in the administration of their common business: whereas amongst men there are very many that think themselves wiser and abler to govern the public better than the rest, and these strive to reform and innovate, one this way, another that way; and thereby bring it into distraction and civil war.
 Fourthly, that these creatures, though they have some use of voice in making known to one another their desires and other affections, yet they want that art of words by which some men can represent to others that which is good in the likeness of evil; and evil, in the likeness of good; and augment or diminish the apparent greatness of good and evil, discontenting men and troubling their peace at their pleasure.
 Fifthly, irrational creatures cannot distinguish between injury and damage; and therefore as long as they be at ease, they are not offended with their fellows: whereas man is then most troublesome when he is most at ease; for then it is that he loves to show his wisdom, and control the actions of them that govern the Commonwealth.
 Lastly, the agreement of these creatures is natural; that of men is by covenant only, which is artificial: and therefore it is no wonder if there be somewhat else required, besides covenant, to make their agreement constant and lasting; which is a common power to keep them in awe and to direct their actions to the common benefit.
 The only way to erect such a common power, as may be able to defend them from the invasion of foreigners, and the injuries of one another, and thereby to secure them in such sort as that by their own industry and by the fruits of the earth they may nourish themselves and live contentedly, is to confer all their power and strength upon one man, or upon one assembly of men, that may reduce all their wills, by plurality of voices, unto one will: which is as much as to say, to appoint one man, or assembly of men, to bear their person; and every one to own and acknowledge himself to be author of whatsoever he that so beareth their person shall act, or cause to be acted, in those things which concern the common peace and safety; and therein to submit their wills, every one to his will, and their judgements to his judgement. This is more than consent, or concord; it is a real unity of them all in one and the same person, made by covenant of every man with every man, in such manner as if every man should say to every man: I authorise and give up my right of governing myself to this man, or to this assembly of men, on this condition; that thou give up, thy right to him, and authorise all his actions in like manner. This done, the multitude so united in one person is called a COMMONWEALTH; in Latin, CIVITAS. This is the generation of that great LEVIATHAN, or rather, to speak more reverently, of that mortal god to which we owe, under the immortal God, our peace and defence. For by this authority, given him by every particular man in the Commonwealth, he hath the use of so much power and strength conferred on him that, by terror thereof, he is enabled to form the wills of them all, to peace at home, and mutual aid against their enemies abroad. And in him consisteth the essence of the Commonwealth; which, to define it, is: one person, of whose acts a great multitude, by mutual covenants one with another, have made themselves every one the author, to the end he may use the strength and means of them all as he shall think expedient for their peace and common defence.
 And he that carryeth this person is called sovereign, and said to have sovereign power; and every one besides, his subject. . . .
 A COMMONWEALTH is said to be instituted when a multitude of men do agree, and covenant, every one with every one, that to whatsoever man, or assembly of men, shall be given by the major part the right to present the person of them all, that is to say, to be their representative; every one, as well he that voted for it as he that voted against it, shall authorize all the actions and judgements of that man, or assembly of men, in the same manner as if they were his own, to the end to live peaceably amongst themselves, and be protected against other men.
 From this institution of a Commonwealth are derived all the rights and faculties of him, or them, on whom the sovereign power is conferred by the consent of the people assembled.
 First, because they covenant, it is to be understood they are not obliged by former covenant to anything repugnant hereunto. And consequently they that have already instituted a Commonwealth, being thereby bound by covenant to own the actions and judgements of one, cannot lawfully make a new covenant amongst themselves to be obedient to any other, in anything whatsoever, without his permission. . . .
 Secondly, because the right of bearing the person of them all is given to him they make sovereign, by covenant only of one to another, and not of him to any of them, there can happen no breach of covenant on the part of the sovereign; and consequently none of his subjects, by any pretence of forfeiture, can be freed from his subjection. . . . Besides, if any one or more of them pretend a breach of the covenant made by the sovereign at his institution, and others or one other of his subjects, or himself alone, pretend there was no such breach, there is in this case no judge to decide the controversy: it returns therefore to the sword again; and every man recovereth the right of protecting himself by his own strength, contrary to the design they had in the institution. It is therefore in vain to grant sovereignty by way of precedent covenant. The opinion that any monarch receiveth his power by covenant, that is to say, on condition, proceedeth from want of understanding this easy truth: that covenants being but words, and breath, have no force to oblige, contain, constrain, or protect any man, but what it has from the public sword. . . .
 Thirdly, because the major part hath by consenting voices declared a sovereign, he that dissented must now consent with the rest; that is, be contented to avow all the actions he shall do, or else justly be destroyed by the rest. . . .
 Fourthly, because every subject is by this institution author of all the actions and judgements of the sovereign instituted, it follows that whatsoever he doth, can be no injury to any of his subjects; nor ought he to be by any of them accused of injustice. . . .
 Fifthly, and consequently to that which was said last, no man that hath sovereign power can justly be put to death, or otherwise in any manner by his subjects punished. For seeing every subject is author of the actions of his sovereign, he punisheth another for the actions committed by himself.
 And because the end of this institution is the peace and defence of them all, and whosoever has right to the end has right to the means, it belonged of right to whatsoever man or assembly that hath the sovereignty to be judge both of the means of peace and defence, and also of the hindrances and disturbances of the same; and to do whatsoever he shall think necessary to be done, both beforehand, for the preserving of peace and security, by prevention of discord at home, and hostility from abroad; and when peace and security are lost, for the recovery of the same. And therefore,
 Sixthly, it is annexed to the sovereignty to be judge of what opinions and doctrines are averse, and what conducing to peace; and consequently, on what occasions, how far, and what men are to be trusted withal in speaking to multitudes of people; and who shall examine the doctrines of all books before they be published. . . .
 Seventhly, is annexed to the sovereignty the whole power of prescribing the rules whereby every man may know what goods he may enjoy, and what actions he may do, without being molested by any of his fellow subjects: and this is it men call propriety. For before constitution of sovereign power, as hath already been shown, all men had right to all things, which necessarily causeth war: and therefore this propriety, being necessary to peace, and depending on sovereign power, is the act of that power, in order to the public peace. These rules of propriety (or meum and tuum) and of good, evil, lawful, and unlawful in the actions of subjects are the civil laws. . . .
 Eighthly, is annexed to the sovereignty the right of judicature; that is to say, of hearing and deciding all controversies which may arise concerning law, either civil or natural, or concerning fact. . . .
 Ninthly, is annexed to the sovereignty the right of making war and peace with other nations and Commonwealths; that is to say, of judging when it is for the public good, and how great forces are to be assembled, armed, and paid for that end, and to levy money upon the subjects to defray the expenses thereof. . . .
 Tenthly, is annexed to the sovereignty the choosing of all counsellors, ministers, magistrates, and officers, both in peace and war. For seeing the sovereign is charged with the end, which is the common peace and defence, he is understood to have power to use such means as he shall think most fit for his discharge.
 Eleventhly, to the sovereign is committed the power of rewarding with riches or honour; and of punishing with corporal or pecuniary punishment, or with ignominy, every subject according to the law he hath formerly made; or if there be no law made, according as he shall judge most to conduce to the encouraging of men to serve the Commonwealth, or deterring of them from doing disservice to the same. . . . To the sovereign therefore it belonged also to give titles of honour, and to appoint what order of place and dignity each man shall hold, and what signs of respect in public or private meetings they shall give to one another.
 These are the rights which make the essence of sovereignty, and which are the marks whereby a man may discern in what man, or assembly of men, the sovereign power is placed and resideth. For these are incommunicable and inseparable.
 In relation to these bonds only it is that I am to speak now of the liberty of subjects. For seeing there is no Commonwealth in the world wherein there be rules enough set down for the regulating of all the actions and words of men (as being a thing impossible): it followeth necessarily that in all kinds of actions, by the laws pretermitted, men have the liberty of doing what their own reasons shall suggest for the most profitable to themselves. For if we take liberty in the proper sense, for corporal liberty; that is to say, freedom from chains and prison, it were very absurd for men to clamour as they do for the liberty they so manifestly enjoy. Again, if we take liberty for an exemption from laws, it is no less absurd for men to demand as they do that liberty by which all other men may be masters of their lives. And yet as absurd as it is, this is it they demand, not knowing that the laws are of no power to protect them without a sword in the hands of a man, or men, to cause those laws to be put in execution. The liberty of a subject lieth therefore only in those things which, in regulating their actions, the sovereign hath pretermitted: such as is the liberty to buy, and sell, and otherwise contract with one another; to choose their own abode, their own diet, their own trade of life, and institute their children as they themselves think fit; and the like. . . .
 To come now to the particulars of the true liberty of a subject; that is to say, what are the things which, though commanded by the sovereign, he may nevertheless without injustice refuse to do; we are to consider what rights we pass away when we make a Commonwealth; or, which is all one, what liberty we deny ourselves by owning all the actions, without exception, of the man or assembly we make our sovereign. . . .
 I have shown before, in the fourteenth Chapter, that covenants not to defend a man's own body are void. Therefore,
 If the sovereign command a man, though justly condemned, to kill, wound, or maim himself; or not to resist those that assault him; or to abstain from the use of food, air, medicine, or any other thing without which he cannot live; yet hath that man the liberty to disobey.
 If a man be interrogated by the sovereign, or his authority, concerning a crime done by himself, he is not bound (without assurance of pardon) to confess it; because no man, as I have shown in the same chapter, can be obliged by covenant to accuse himself. . . .
 No man is bound by the words themselves, either to kill himself or any other man; and consequently, that the obligation a man may sometimes have, upon the command of the sovereign, to execute any dangerous or dishonourable office, dependeth not on the words of our submission, but on the intention; which is to be understood by the end thereof. When therefore our refusal to obey frustrates the end for which the sovereignty was ordained, then there is no liberty to refuse; otherwise, there is.
 Upon this ground a man that is commanded as a soldier to fight against the enemy, though his sovereign have right enough to punish his refusal with death, may nevertheless in many cases refuse, without injustice; as when he substituteth a sufficient soldier in his place: for in this case he deserteth not the service of the Commonwealth. . . .
 As for other liberties, they depend on the silence of the law. In cases where the sovereign has prescribed no rule, there the subject hath the liberty to do, or forbear, according to his own discretion. And therefore such liberty is in some places more, and in some less; and in some times more, in other times less, according as they that have the sovereignty shall think most convenient. . . .
 The obligation of subjects to the sovereign is understood to last as long, and no longer, than the power lasteth by which he is able to protect them. For the right men have by nature to protect themselves, when none else can protect them, can by no covenant be relinquished. The sovereignty is the soul of the Commonwealth; which, once departed from the body, the members do no more receive their motion from it. The end of obedience is protection; which, wheresoever a man seeth it, either in his own or in another's sword, nature applieth his obedience to it, and his endeavour to maintain it. And though sovereignty, in the intention of them that make it, be immortal; yet is it in its own nature, not only subject to violent death by foreign war, but also through the ignorance and passions of men it hath in it, from the very institution, many seeds of a natural mortality, by intestine discord.
 The law of nature and the civil law contain each other and are of equal extent. For the laws of nature, which consist in equity, justice, gratitude, and other moral virtues on these depending, in the condition of mere nature (as I have said before in the end of the fifteenth Chapter), are not properly laws, but qualities that dispose men to peace and to obedience. When a Commonwealth is once settled, then are they actually laws, and not before; as being then the commands of the Commonwealth; and therefore also civil laws: for it is the sovereign power that obliges men to obey them. For the differences of private men, to declare what is equity, what is justice, and is moral virtue, and to make them binding, there is need of the ordinances of sovereign power, and punishments to be ordained for such as shall break them; which ordinances are therefore part of the civil law. The law of nature therefore is a part of the civil law in all Commonwealths of the world. Reciprocally also, the civil law is a part of the dictates of nature. For justice, that is to say, performance of covenant, and giving to every man his own, is a dictate of the law of nature. But every subject in a Commonwealth hath covenanted to obey the civil law; either one with another, as when they assemble to make a common representative, or with the representative itself one by one when, subdued by the sword, they promise obedience that they may receive life; and therefore obedience to the civil law is part also of the law of nature. Civil and natural law are not different kinds, but different parts of law; whereof one part, being written, is called civil the other unwritten, natural. But the right of nature, that is, the natural liberty of man, may by the civil law be abridged and restrained: nay, the end of making laws is no other but such restraint, without which there cannot possibly be any peace. And law was brought into the world for nothing else but to limit the natural liberty of particular men in such manner as they might not hurt, but assist one another, and join together against a common enemy.