THE principles asserted in these pages must be more generally admitted as the basis for discussion of details, before a consistent application of them to all the various departments of government and morals can be attempted with any prospect of advantage. The few observations I propose to make on questions of detail, are designed to illustrate the principles, rather than to follow them out to their consequences. I offer, not so much applications, as specimens of application; which may serve to bring into greater clearness the meaning and limits of the two maxims which together form the entire doctrine of this Essay and to assist the judgment in holding the balance between them, in the cases where it appears doubtful which of them is applicable to the case.

The maxims are, first, that the individual is not accountable to society for his actions, in so far as these concern the interests of no person but himself. Advice, instruction, persuasion, and avoidance by other people, if thought necessary by them for their own good, are the only measures by which society can justifiably express its dislike or disapprobation of his conduct. Secondly, that for such actions as are prejudicial to the interests of others, the individual is accountable, and may be subjected either to social or to legal punishments, if society is of opinion that the one or the other is requisite for its protection.

In the first place, it must by no means be supposed, because damage, or probability of damage, to the interests of others, can alone justify the interference of society, that therefore it always does justify such interference. In many cases, an individual, in pursuing a legitimate object, necessarily and therefore legitimately causes pain or loss to others, or intercepts a good which they had a reasonable hope of obtaining. Such oppositions of interest between individuals often arise from bad social institutions, but are unavoidable while those institutions last; and some would be unavoidable under any institutions. Whoever succeeds in an overcrowded profession, or in a competitive examination; whoever is preferred to another in any contest for an object which both desire, reaps benefit from the loss of others, from their wasted exertion and their disappointment. But it is, by common admission, better for the general interest of mankind, that persons should pursue their objects undeterred by this sort of consequences. In other words, society admits no right, either legal or moral, in the disappointed competitors, to immunity from this kind of suffering; and feels called on to interfere, only when means of success have been employed which it is contrary to the general interest to permit — namely, fraud or treachery, and force.

Again, trade is a social act. Whoever undertakes to sell any description of goods to the public, does what affects the interest of other persons, and of society in general; and thus his conduct, in principle, comes within the jurisdiction of society: accordingly, it was once held to be the duty of governments, in all cases which were considered of importance, to fix prices, and regulate the processes of manufacture. But it is now recognized, though not till after a long struggle, that both the cheapness and the good quality of commodities are most effectually provided for by leaving the producers and sellers perfectly free, under the sole check of equal freedom to the buyers for supplying themselves elsewhere. This is the so-called doctrine of Free Trade, which rests on grounds different from, though equally solid with, the principle of individual liberty asserted in this Essay. Restrictions on trade, or on production for purposes of trade, are indeed restraints; and all restraint, qua restraint, is an evil: but the restraints in question affect only that part of conduct which society is competent to restrain, and are wrong solely because they do not really produce the results which it is desired to produce by them. As the principle of individual liberty is not involved in the doctrine of Free Trade so neither is it in most of the questions which arise respecting the limits of that doctrine: as for example, what amount of public control is admissible for the prevention of fraud by adulteration; how far sanitary precautions, or arrangements to protect work-people employed in dangerous occupations, should be enforced on employers. Such questions involve considerations of liberty, only in so far as leaving people to themselves is always better, caeteris paribus, than controlling them: but that they may be legitimately controlled for these ends, is in principle undeniable. On the other hand, there are questions relating to interference with trade which are essentially questions of liberty; such as the Maine Law, already touched upon; the prohibition of the importation of opium into China; the restriction of the sale of poisons; all cases, in short, where the object of the interference is to make it impossible or difficult to obtain a particular commodity. These interferences are objectionable, not as infringements on the liberty of the producer or seller, but on that of the buyer.

One of these examples, that of the sale of poisons, opens a new question; the proper limits of what may be called the functions of police; how far liberty may legitimately be invaded for the prevention of crime, or of accident. It is one of the undisputed functions of government to take precautions against crime before it has been committed, as well as to detect and punish it afterwards. The preventive function of government, however, is far more liable to be abused, to the prejudice of liberty, than the punitory function; for there is hardly any part of the legitimate freedom of action of a human being which would not admit of being represented, and fairly too, as increasing the facilities for some form or other of delinquency. Nevertheless, if a public authority, or even a private person, sees any one evidently preparing to commit a crime, they are not bound to look on inactive until the crime is committed, but may interfere to prevent it. If poisons were never bought or used for any purpose except the commission of murder, it would be right to prohibit their manufacture and sale. They may, however, be wanted not only for innocent but for useful purposes, and restrictions cannot be imposed in the one case without operating in the other. Again, it is a proper office of public authority to guard against accidents. If either a public officer or any one else saw a person attempting to cross a bridge which had been ascertained to be unsafe, and there were no time to warn him of his danger, they might seize him and turn him back without any real infringement of his liberty; for liberty consists in doing what one desires, and he does not desire to fall into the river. Nevertheless, when there is not a certainty, but only a danger of mischief, no one but the person himself can judge of the sufficiency of the motive which may prompt him to incur the risk: in this case, therefore, (unless he is a child, or delirious, or in some state of excitement or absorption incompatible with the full use of the reflecting faculty,) he ought, I conceive, to be only warned of the danger; not forcibly prevented from exposing himself to it. Similar considerations, applied to such a question as the sale of poisons, may enable us to decide which among the possible modes of regulation are or are not contrary to principle. Such a precaution, for example, as that of labelling the drug with some word expressive of its dangerous character, may be enforced without violation of liberty: the buyer cannot wish not to know that the thing he possesses has poisonous qualities. But to require in all cases the certificate of a medical practitioner, would make it sometimes impossible, always expensive, to obtain the article for legitimate uses. The only mode apparent to me, in which difficulties may be thrown in the way of crime committed through this means, without any infringement, worth taking into account, upon the liberty of those who desire the poisonous substance for other purposes, consists in providing what, in the apt language of Bentham, is called “preappointed evidence.” This provision is familiar to every one in the case of contracts. It is usual and right that the law, when a contract is entered into, should require as the condition of its enforcing performance, that certain formalities should be observed, such as signatures, attestation of witnesses, and the like, in order that in case of subsequent dispute, there may be evidence to prove that the contract was really entered into, and that there was nothing in the circumstances to render it legally invalid: the effect being, to throw great obstacles in the way of fictitious contracts, or contracts made in circumstances which, if known, would destroy their validity. Precautions of a similar nature might be enforced in the sale of articles adapted to be instruments of crime. The seller, for example, might be required to enter in a register the exact time of the transaction, the name and address of the buyer, the precise quality and quantity sold; to ask the purpose for which it was wanted, and record the answer he received. When there was no medical prescription, the presence of some third person might be required, to bring home the fact to the purchaser, in case there should afterwards be reason to believe that the article had been applied to criminal purposes. Such regulations would in general be no material impediment to obtaining the article, but a very considerable one to making an improper use of it without detection.

The right inherent in society, to ward off crimes against itself by antecedent precautions, suggests the obvious limitations to the maxim, that purely self-regarding misconduct cannot properly be meddled with in the way of prevention or punishment. Drunkennesses, for example, in ordinary cases, is not a fit subject for legislative interference; but I should deem it perfectly legitimate that a person, who had once been convicted of any act of violence to others under the influence of drink, should be placed under a special legal restriction, personal to himself; that if he were afterwards found drunk, he should be liable to a penalty, and that if when in that state he committed another offence, the punishment to which he would be liable for that other offence should be increased in severity. The making himself drunk, in a person whom drunkenness excites to do harm to others, is a crime against others. So, again, idleness, except in a person receiving support from the public, or except when it constitutes a breach of contract, cannot without tyranny be made a subject of legal punishment; but if either from idleness or from any other avoidable cause, a man fails to perform his legal duties to others, as for instance to support his children, it is no tyranny to force him to fulfil that obligation, by compulsory labor, if no other means are available.

Again, there are many acts which, being directly injurious only to the agents themselves, ought not to be legally interdicted, but which, if done publicly, are a violation of good manners, and coming thus within the category of offences against others, may rightfully be prohibited. Of this kind are offences against decency; on which it is unnecessary to dwell, the rather as they are only connected indirectly with our subject, the objection to publicity being equally strong in the case of many actions not in themselves condemnable, nor supposed to be so.

There is another question to which an answer must be found, consistent with the principles which have been laid down. In cases of personal conduct supposed to be blameable, but which respect for liberty precludes society from preventing or punishing, because the evil directly resulting falls wholly on the agent; what the agent is free to do, ought other persons to be equally free to counsel or instigate? This question is not free from difficulty. The case of a person who solicits another to do an act, is not strictly a case of self-regarding conduct. To give advice or offer inducements to any one, is a social act, and may therefore, like actions in general which affect others, be supposed amenable to social control. But a little reflection corrects the first impression, by showing that if the case is not strictly within the definition of individual liberty, yet the reasons on which the principle of individual liberty is grounded, are applicable to it. If people must be allowed, in whatever concerns only themselves, to act as seems best to themselves at their own peril, they must equally be free to consult with one another about what is fit to be so done; to exchange opinions, and give and receive suggestions. Whatever it is permitted to do, it must be permitted to advise to do. The question is doubtful, only when the instigator derives a personal benefit from his advice; when he makes it his occupation, for subsistence, or pecuniary gain, to promote what society and the State consider to be an evil. Then, indeed, a new element of complication is introduced; namely, the existence of classes of persons with an interest opposed to what is considered as the public weal, and whose mode of living is grounded on the counteraction of it. Ought this to be interfered with, or not? Fornication, for example, must be tolerated, and so must gambling; but should a person be free to be a pimp, or to keep a gambling-house? The case is one of those which lie on the exact boundary line between two principles, and it is not at once apparent to which of the two it properly belongs. There are arguments on both sides. On the side of toleration it may be said, that the fact of following anything as an occupation, and living or profiting by the practice of it, cannot make that criminal which would otherwise be admissible; that the act should either be consistently permitted or consistently prohibited; that if the principles which we have hitherto defended are true, society has no business, as society, to decide anything to be wrong which concerns only the individual; that it cannot go beyond dissuasion, and that one person should be as free to persuade, as another to dissuade. In opposition to this it may be contended, that although the public, or the State, are not warranted in authoritatively deciding, for purposes of repression or punishment, that such or such conduct affecting only the interests of the individual is good or bad, they are fully justified in assuming, if they regard it as bad, that its being so or not is at least a disputable question: That, this being supposed, they cannot be acting wrongly in endeavoring to exclude the influence of solicitations which are not disinterested, of instigators who cannot possibly be impartial — who have a direct personal interest on one side, and that side the one which the State believes to be wrong, and who confessedly promote it for personal objects only. There can surely, it may be urged, be nothing lost, no sacrifice of good, by so ordering matters that persons shall make their election, either wisely or foolishly, on their own prompting, as free as possible from the arts of persons who stimulate their inclinations for interested purposes of their own. Thus (it may be said) though the statutes respecting unlawful games are utterly indefensible — though all persons should be free to gamble in their own or each other’s houses, or in any place of meeting established by their own subscriptions, and open only to the members and their visitors — yet public gambling-houses should not be permitted. It is true that the prohibition is never effectual, and that whatever amount of tyrannical power is given to the police, gamblinghouses can always be maintained under other pretences; but they may be compelled to conduct their operations with a certain degree of secrecy and mystery, so that nobody knows anything about them but those who seek them; and more than this society ought not to aim at. There is considerable force in these arguments. I will not venture to decide whether they are sufficient to justify the moral anomaly of punishing the accessary, when the principal is (and must be) allowed to go free; of fining or imprisoning the procurer, but not the fornicator, the gambling-house keeper, but not the gambler. Still less ought the common operations of buying and selling to be interfered with on analogous grounds. Almost every article which is bought and sold may be used in excess, and the sellers have a pecuniary interest in encouraging that excess; but no argument can be founded on this, in favor, for instance, of the Maine Law; because the class of dealers in strong drinks, though interested in their abuse, are indispensably required for the sake of their legitimate use. The interest, however, of these dealers in promoting intemperance is a real evil, and justifies the State in imposing restrictions and requiring guarantees, which but for that justification would be infringements of legitimate liberty.

A further question is, whether the State while it permits, should nevertheless indirectly discourage conduct which it deems contrary to the best interests of the agent; whether, for example, it should take measures to render the means of drunkenness more costly, or add to the difficulty of procuring them, by limiting the number of the places of sale. On this as on most other practical questions, many distinctions require to be made. To tax stimulants for the sole purpose of making them more difficult to be obtained, is a measure differing only in degree from their entire prohibition; and would be justifiable only if that were justifiable. Every increase of cost is a prohibition, to those whose means do not come up to the augmented price; and to those who do, it is a penalty laid on them for gratifying a particular taste. Their choice of pleasures, and their mode of expending their income, after satisfying their legal and moral obligations to the State and to individuals, are their own concern, and must rest with their own judgment. These considerations may seem at first sight to condemn the selection of stimulants as special subjects of taxation for purposes of revenue. But it must be remembered that taxation for fiscal purposes is absolutely inevitable; that in most countries it is necessary that a considerable part of that taxation should be indirect; that the State, therefore, cannot help imposing penalties, which to some persons may be prohibitory, on the use of some articles of consumption. It is hence the duty of the State to consider, in the imposition of taxes, what commodities the consumers can best spare; and a fortiori, to select in preference those of which it deems the use, beyond a very moderate quantity, to be positively injurious. Taxation, therefore, of stimulants, up to the point which produces the largest amount of revenue (supposing that the State needs all the revenue which it yields) is not only admissible, but to be approved of.

The question of making the sale of these commodities a more or less exclusive privilege, must be answered differently, according to the purposes to which the restriction is intended to be subservient. All places of public resort require the restraint of a police, and places of this kind peculiarly, because offences against society are especially apt to originate there. It is, therefore, fit to confine the power of selling these commodities (at least for consumption on the spot) to persons of known or vouched-for respectability of conduct; to make such regulations respecting hours of opening and closing as may be requisite for public surveillance, and to withdraw the license if breaches of the peace repeatedly take place through the connivance or incapacity of the keeper of the house, or if it becomes a rendezvous for concocting and preparing offences against the law. Any further restriction I do not conceive to be, in principle, justifiable. The limitation in number, for instance, of beer and spirit-houses, for the express purpose of rendering them more difficult of access, and diminishing the occasions of temptation, not only exposes all to an inconvenience because there are some by whom the facility would be abused, but is suited only to a state of society in which the laboring classes are avowedly treated as children or savages, and placed under an education of restraint, to fit them for future admission to the privileges of freedom. This is not the principle on which the laboring classes are professedly governed in any free country; and no person who sets due value on freedom will give his adhesion to their being so governed, unless after all efforts have been exhausted to educate them for freedom and govern them as freemen, and it has been definitively proved that they can only be governed as children. The bare statement of the alternative shows the absurdity of supposing that such efforts have been made in any case which needs be considered here. It is only because the institutions of this country are a mass of inconsistencies, that things find admittance into our practice which belong to the system of despotic, or what is called paternal, government, while the general freedom of our institutions precludes the exercise of the amount of control necessary to render the restraint of any real efficacy as a moral education.

It was pointed out in an early part of this Essay, that the liberty of the individual, in things wherein the individual is alone concerned, implies a corresponding liberty in any number of individuals to regulate by mutual agreement such things as regard them jointly, and regard no persons but themselves. This question presents no difficulty, so long as the will of all the persons implicated remains unaltered; but since that will may change, it is often necessary, even in things in which they alone are concerned, that they should enter into engagements with one another; and when they do, it is fit, as a general rule, that those engagements should be kept. Yet in the laws probably, of every country, this general rule has some exceptions. Not only persons are not held to engagements which violate the rights of third parties, but it is sometimes considered a sufficient reason for releasing them from an engagement, that it is injurious to themselves. In this and most other civilized countries, for example, an engagement by which a person should sell himself, or allow himself to be sold, as a slave, would be null and void; neither enforced by law nor by opinion. The ground for thus limiting his power of voluntarily disposing of his own lot in life, is apparent, and is very clearly seen in this extreme case. The reason for not interfering, unless for the sake of others, with a person’s voluntary acts, is consideration for his liberty. His voluntary choice is evidence that what he so chooses is desirable, or at the least endurable, to him, and his good is on the whole best provided for by allowing him to take his own means of pursuing it. But by selling himself for a slave, he abdicates his liberty; he foregoes any future use of it, beyond that single act. He therefore defeats, in his own case, the very purpose which is the justification of allowing him to dispose of himself. He is no longer free; but is thenceforth in a position which has no longer the presumption in its favor, that would be afforded by his voluntarily remaining in it. The principle of freedom cannot require that he should be free not to be free. It is not freedom, to be allowed to alienate his freedom. These reasons, the force of which is so conspicuous in this peculiar case, are evidently of far wider application; yet a limit is everywhere set to them by the necessities of life, which continually require, not indeed that we should resign our freedom, but that we should consent to this and the other limitation of it. The principle, however, which demands uncontrolled freedom of action in all that concerns only the agents themselves, requires that those who have become bound to one another, in things which concern no third party, should be able to release one another from the engagement: and even without such voluntary release, there are perhaps no contracts or engagements, except those that relate to money or money’s worth, of which one can venture to say that there ought to be no liberty whatever of retractation. Baron Wilhelm von Humboldt, in the excellent Essay from which I have already quoted, states it as his conviction, that engagements which involve personal relations or services, should never be legally binding beyond a limited duration of time; and that the most important of these engagements, marriage, having the peculiarity that its objects are frustrated unless the feelings of both the parties are in harmony with it, should require nothing more than the declared will of either party to dissolve it. This subject is too important, and too complicated, to be discussed in a parenthesis, and I touch on it only so far as is necessary for purposes of illustration. If the conciseness and generality of Baron Humboldt’s dissertation had not obliged him in this instance to content himself with enunciating his conclusion without discussing the premises, he would doubtless have recognized that the question cannot be decided on grounds so simple as those to which he confines himself. When a person, either by express promise or by conduct, has encouraged another to rely upon his continuing to act in a certain way — to build expectations and calculations, and stake any part of his plan of life upon that supposition, a new series of moral obligations arises on his part towards that person, which may possibly be overruled, but can not be ignored. And again, if the relation between two contracting parties has been followed by consequences to others; if it has placed third parties in any peculiar position, or, as in the case of marriage, has even called third parties into existence, obligations arise on the part of both the contracting parties towards those third persons, the fulfilment of which, or at all events, the mode of fulfilment, must be greatly affected by the continuance or disruption of the relation between the original parties to the contract. It does not follow, nor can I admit, that these obligations extend to requiring the fulfilment of the contract at all costs to the happiness of the reluctant party; but they are a necessary element in the question; and even if, as Von Humboldt maintains, they ought to make no difference in the legal freedom of the parties to release themselves from the engagement (and I also hold that they ought not to make much difference), they necessarily make a great difference in the moral freedom. A person is bound to take all these circumstances into account, before resolving on a step which may affect such important interests of others; and if he does not allow proper weight to those interests, he is morally responsible for the wrong. I have made these obvious remarks for the better illustration of the general principle of liberty, and not because they are at all needed on the particular question, which, on the contrary, is usually discussed as if the interest of children was everything, and that of grown persons nothing.

I have already observed that, owing to the absence of any recognized general principles, liberty is often granted where it should be withheld, as well as withheld where it should be granted; and one of the cases in which, in the modern European world, the sentiment of liberty is the strongest, is a case where, in my view, it is altogether misplaced. A person should be free to do as he likes in his own concerns; but he ought not to be fre............