[First printed, 1780; first published, 1789. Reprinted here from the second, enlarged, edition, 1823, with misprints corrected, spelling slightly modified, and some footnotes omitted]

Chapter I: Of the Principle of Utility

I. Nature has placed mankind under the governance of two sovereign masters, pain and pleasure. It is for them alone to point out what we ought to do, as well as to determine what we shall do. On the one hand the standard of right and wrong, on the other the chain of causes and effects, are fastened to their throne. They govern us in all we do, in all we say, in all we think: every effort we can make to throw off our subjection, will serve but to demonstrate and confirm it. In words a man may pretend to abjure their empire: but in reality he will remain subject to it all the while. The principle of utility* recognizes this subjection, and assumes it for the foundation of that system, the object of which is to rear the fabric of felicity by the hands of reason and of law. Systems which attempt to question it, deal in sounds instead of sense, in caprice instead of reason, in darkness instead of light.

But enough of metaphor and declamation: it is not by such means that moral science is to be improved.

II. The principle of utility is the foundation of the present work: it will be proper therefore at the outset to give an explicit and determinate account of what is meant by it. By the principle* of utility is meant that principle which approves or disapproves of every action whatsoever, according to the tendency which it appears to have to augment or diminish the happiness of the party whose interest is in question: or, what is the same thing in other words, to promote or to oppose that happiness. I say of every action whatsoever; and therefore not only of every action of a private individual, but of every measure of government.

III. By utility is meant that property in any object, whereby it tends to produce benefit, advantage, pleasure, good, or happiness, (all this in the present case comes to the same thing) or (what comes again to the same thing) to prevent the happening of mischief, pain, evil, or unhappiness to the party whose interest is considered: if that party be the community in general, then the happiness of the community: if a particular individual, then the happiness of that individual.

IV. The interest of the community is one of the most general expressions that can occur in the phraseology of morals: no wonder that the meaning of it is often lost. When it has a meaning, it is this. The community is a fictitious body, composed of the individual persons who are considered as constituting as it were its members. The interest of the community then is, what?—the sum of the interests of the several members who compose it.

V. It is in vain to talk of the interest of the community, without understanding what is the interest of the individual.† A thing is said to promote the interest, or to be for the interest, of an individual, when it tends to add to the sum total of his pleasures: or, what comes to the same thing, to diminish the sum total of his pains.

VI. An action then may be said to be conformable to the principle of utility, or, for shortness sake, to utility, (meaning with respect to the community at large) when the tendency it has to augment the happiness of the community is greater than any it has to diminish it.

VII. A measure of government (which is but a particular kind of action, performed by a particular person or persons) may be said to be conformable to or dictated by the principle of utility, when in like manner the tendency which it has to augment the happiness of the community is greater than any which it has to diminish it.

VIII. When an action, or in particular a measure of government, is supposed by a man to be conformable to the principle of utility, it may be convenient, for the purposes of discourse, to imagine a kind of law or dictate, called a law or dictate of utility: and to speak of the action in question, as being conformable to such law or dictate.

IX. A man may be said to be a partizan of the principle of utility, when the approbation or disapprobation he annexes to any action, or to any measure, is determined by, and proportioned to the tendency which he conceives it to have to augment or to diminish the happiness of the community: or in other words, to its conformity or unconformity to the laws or dictates of utility.

X. Of an action that is conformable to the principle of utility, one may always say either that it is one that ought to be done, or at least that it is not one that ought not to be done. One may say also, that it is right it should be done; at least that it is not wrong it should be done: that it is a right action; at least that it is not a wrong action. When thus interpreted, the words ought, and right and wrong, and others of that stamp, have a meaning: when otherwise, they have none.

XI. Has the rectitude of this principle been ever formally contested? It should seem that it had, by those who have not known what they have been meaning. Is it susceptible of any direct proof? It should seem not: for that which is used to prove every thing else, cannot itself be proved: a chain of proofs must have their commencement somewhere. To give such proof is as impossible as it is needless.

XII. Not that there is or ever has been that human creature breathing, however stupid or perverse, who has not on many, perhaps on most occasions of his life, deferred to it. By the natural constitution of the human frame, on most occasions of their lives men in general embrace this principle, without thinking of it: if not for the ordering of their own actions, yet for the trying of their own actions, as well as of those of other men. There have been, at the same time, not many, perhaps, even of the most intelligent, who have been disposed to embrace it purely and without reserve. There are even few who have not taken some occasion or other to quarrel with it, either on account of their not understanding always how to apply it, or on account of some prejudice or other which they were afraid to examine into, or could not bear to part with. For such is the stuff that man is made of: in principle and in practice, in a right track and in a wrong one, the rarest of all human qualities is consistency.

XIII. When a man attempts to combat the principle of utility, it is with reasons drawn, without his being aware of it, from that very principle itself.* His arguments, if they prove any thing, prove not that the principle is wrong, but that, according to the applications he supposes to be made of it, it is misapplied. Is it possible for a man to move the earth? Yes; but he must first find out another earth to stand upon.

XIV. To disprove the propriety of it by arguments is impossible; but, from the causes that have been mentioned, or from some confused or partial view of it, a man may happen to be disposed not to relish it. Where this is the case, if he thinks the settling of his opinions on such a subject worth the trouble, let him take the following steps, and at length, perhaps, he may come to reconcile himself to it.

1. Let him settle with himself, whether he would wish to discard this principle altogether; if so, let him consider what it is that all his reasonings (in matters of politics especially) can amount to?
2. If he would, let him settle with himself, whether he would judge and act without any principle, or whether there is any other he would judge and act by?
3. If there be, let him examine and satisfy himself whether the principle he thinks he has found is really any separate intelligible principle; or whether it be not a mere principle in words, a kind of phrase, which at bottom expresses neither more nor less than the mere averment of his own unfounded sentiments; that is, what in another person he might be apt to call caprice?
4. If he is inclined to think that his own approbation or disapprobation, annexed to the idea of an act, without any regard to its consequences, is a sufficient foundation for him to judge and act upon, let him ask himself whether his sentiment is to be a standard of right and wrong, with respect to every other man, or whether every man’s sentiment has the same privilege of being a standard to itself?
5. In the first case, let him ask himself whether his principle is not despotical, and hostile to all the rest of human race?
6. In the second case, whether it is not anarchial, and whether at this rate there are not as many different standards of right and wrong as there are men? and whether even to the same man, the same thing, which is right to-day, may not (without the least change in its nature) be wrong to-morrow? and whether the same thing is not right and wrong in the same place at the same time? and in either case, whether all argument is not at an end? and whether, when two men have said, ‘I like this,’ and ‘I don’t like it,’ they can (upon such a principle) have any thing more to say?
7. If he should have said to himself, No: for that the sentiment which he proposes as a standard must be grounded on reflection, let him say on what particulars the reflection is to turn? if on particulars having relation to the utility of the act, then let him say whether this is not deserting his own principle, and borrowing assistance from that very one in opposition to which he sets it up: or if not on those particulars, on what other particulars?
8. If he should be for compounding the matter, and adopting his own principle in part, and the principle of utility in part, let him say how far he will adopt it?
9. When he has settled with himself where he will stop, then let him ask himself how he justifies to himself the adopting it so far? and why he will not adopt it any farther?
10. Admitting any other principle than the principle of utility to be a right principle, a principle that it is right for a man to pursue; admitting (what is not true) that the word right can have a meaning without reference to utility, let him say whether there is any such thing as a motive that a man can have to pursue the dictates of it: if there is, let him say what that motive is, and how it is to be distinguished from those which enforce the dictates of utility: if not, then lastly let him say what it is this other principle can be good for?

Chapter II: Of Principles Adverse to That of Utility

I. If the principle of utility be a right principle to be governed by, and that in all cases, it follows from what has been just observed, that whatever principle differs from it in any case must necessarily be a wrong one. To prove any other principle, therefore, to be a wrong one, there needs no more than just to show it to be what it is, a principle of which the dictates are in some point or other different from those of the principle of utility: to state it is to confute it.

II. A principle may be different from that of utility in two ways: 1. By being constantly opposed to it: this is the case with a principle which may be termed the principle of asceticism. 2. By being sometimes opposed to it, and sometimes not, as it may happen: this is the case with another, which may be termed the principle of sympathy and antipathy.

III. By the principle of asceticism I mean that principle, which, like the principle of utility, approves or disapproves of any action, according to the tendency which it appears to have to augment or diminish the happiness of the party whose interest is in question; but in an inverse manner: approving of actions in as far as they tend to diminish his happiness; disapproving of them in as far as they tend to augment it.

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IX. The principle of asceticism seems originally to have been the reverie of certain hasty speculators, who having perceived, or fancied, that certain pleasures, when reaped in certain circumstances, have, at the long run, been attended with pains more than equivalent to them, took occasion to quarrel with every thing that offered itself under the name of pleasure. Having then got thus far, and having forgot the point which they set out from, they pushed on, and went so much further as to think it meritorious to fall in love with pain. Even this, we see, is at bottom but the principle of utility misapplied.

X. The principle of utility is capable of being consistently pursued; and it is but tautology to say, that the more consistently it is pursued, the better it must ever be for human-kind. The principle of asceticism never was, nor ever can be, consistently pursued by any living creature. Let but one tenth part of the inhabitants of this earth pursue it consistently, and in a day’s time they will have turned it into a hell.

XI. Among principles adverse to that of utility, that which at this day seems to have most influence in matters of government, is what may be called the principle of sympathy and antipathy. By the principle of sympathy and antipathy, I mean that principle which approves or disapproves of certain actions, not on account of their tending to augment the happiness, nor yet on account of their tending to diminish the happiness of the party whose interest is in question, but merely because a man finds himself disposed to approve or disapprove of them: holding up that approbation or disapprobation as a sufficient reason for itself, and disclaiming the necessity of looking out for any extrinsic ground. Thus far in the general department of morals: and in the particular department of politics, measuring out the quantum (as well as determining the ground) of punishment, by the degree of the disapprobation.

XII. It is manifest, that this is rather a principle in name than in reality: it is not a positive principle of itself, so much as a term employed to signify the negation of all principle. What one expects to find in a principle is something that points out some external consideration, as a means of warranting and guiding the internal sentiments of approbation and disapprobation: this expectation is but ill fulfilled by a proposition, which does neither more nor less than hold up each of those sentiments as a ground and standard for itself.

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XIV. The various systems that have been formed concerning the standard of right and wrong, may all be reduced to the principle of sympathy and antipathy. One account may serve for all of them. They consist all of them in so many contrivances for avoiding the obligation of appealing to any external standard, and for prevailing upon the reader to accept of the author’s sentiment or opinion as a reason for itself. The phrases different, but the principle the same.*

XV. It is manifest, that the dictates of this principle will frequently coincide with those of utility, though perhaps without intending any such thing. Probably more frequently than not: and hence it is that the business of penal justice is carried on upon that tolerable sort of footing upon which we see it carried on in common at this day. For what more natural or more general ground of hatred to a practice can there be, than the mischievousness of such practice? What all men are exposed to suffer by, all men will be disposed to hate. It is far yet, however, from being a constant ground: for when a man suffers, it is not always that he knows what it is he suffers by. A man may suffer grievously, for instance, by a new tax, without being able to trace up the cause of his sufferings to the injustice of some neighbour, who has eluded the payment of an old one.

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XVIII. It may be wondered, perhaps, that in all this while no mention has been made of the theological principle; meaning that principle which professes to recur for the standard of right and wrong to the will of God. But the case is, this is not in fact a distinct principle. It is never any thing more or less than one or other of the three before-mentioned principles presenting itself under another shape. The will of God here meant cannot be his revealed will, as contained in the sacred writings: for that is a system which nobody ever thinks of recurring to at this time of day, for the details of political administration: and even before it can be applied to the details of private conduct, it is universally allowed, by the most eminent divines of all persuasions, to stand in need of pretty ample interpretations; else to what use are the works of those divines? And for the guidance of these interpretations, it is also allowed, that some other standard must be assumed. The will then which is meant on this occasion, is that which may be called the presumptive will: that is to say, that which is presumed to be his will on account of the conformity of its dictates to those of some other principle. What then may be this other principle? it must be one or other of the three mentioned above: for there cannot, as we have seen, be any more. It is plain, therefore, that, setting revelation out of the question, no light can ever be thrown upon the standard of right and wrong, by any thing that can be said upon the question, what is God’s will. We may be perfectly sure, indeed, that whatever is right is conformable to the will of God: but so far is that from answering the purpose of showing us what is right, that it is necessary to know first whether a thing is right, in order to know from thence whether it be conformable to the will of God.*

XIX. There are two things which are very apt to be confounded, but which it imports us carefully to distinguish:—the motive or cause, which, by operating on the mind of an individual, is productive of any act: and the ground or reason which warrants a legislator, or other by-stander, in regarding that act with an eye of approbation. When the act happens, in the particular instance in question, to be

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Chapter III: Of the Four Sanctions or Sources of Pain and Pleasure

VI. If from the immediate hand of a superior invisible being, either in the present life, or in a future, it may be said to issue from the religious sanction.

VII. Pleasures or pains which may be expected to issue from the physical, political, or moral sanctions, must all of them be expected to be experienced, if ever, in the present life: those which may be expected to issue from the religious sanction, may be expected to be experienced either in the present life or in a future.

VIII. Those which can be experienced in the present life, can of course be no others than such as human nature in the course of the present life is susceptible of: and from each of these sources may flow all the pleasures or pains of which, in the course of the present life, human nature is susceptible. With regard to these then (with which alone we have in this place any concern) those of them which belong to any one of those sanctions, differ not ultimately in kind from those which belong to any one of the other three: the only difference there is among them lies in the circumstances that accompany their production. A suffering which befalls a man in the natural and spontaneous course of things, shall be styled, for instance, a calamity; in which case, if it be supposed to befall him through any imprudence of his, it may be styled a punishment issuing from the physical sanction. Now this same suffering, if inflicted by the law, will be what is commonly called a punishment; if incurred for want of any friendly assistance, which the misconduct, or supposed misconduct, of the sufferer has occasioned to be withholden, a punishment issuing from the moral sanction; if through the immediate interposition of a particular providence, a punishment issuing from the religious sanction.

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Chapter IV: Value of a Lot of Pleasure or Pain, How to Be Measured

I. Pleasures then, and the avoidance of pains, are the ends which the legislator has in view: it behoves him therefore to understand their value. Pleasures and pains are the instruments he has to work with: it behoves him therefore to understand their force, which is again, in other words, their value.

II. To a person considered by himself, the value of a pleasure or pain considered by itself, will be greater or less, according to the four following circumstances:*

1. Its intensity.
2. Its duration.
3. Its certainty or uncertainty.
4. Its propinquity or remoteness.

III. These are the circumstances which are to be considered in estimating a pleasure or a pain considered each of them by itself. But when the value of any pleasure or pain is considered for the purpose of estimating the tendency of any act by which it is produced, there are two other circumstances to be taken into the account; these are,

5. Its fecundity, or the chance it has of being followed by sensations of the same kind: that is, pleasures, if it be a pleasure: pains, if it be a pain.
6. Its purity, or the chance it has of not being followed by sensations of the opposite kind: that is, pains, if it be a pleasure: pleasures, if it be a pain.

These two last, however, are in strictness scarcely to be deemed properties of the pleasure or the pain itself; they are not, therefore, in strictness to be taken into the account of the value of that pleasure or that pain. They are in strictness to be deemed properties only of the act, or other event, by which such pleasure or pain has been produced; and accordingly are only to be taken into the account of the tendency of such act or such event.

IV. To a number of persons, with reference to each of whom the value of a pleasure or a pain is considered, it will be greater or less, according to seven circumstances: to wit, the six preceding ones; viz.

1. Its intensity.
2. Its duration.
3. Its certainty or uncertainty.
4. Its propinquity or remoteness.
5. Its fecundity.
6. Its purity.

And one other; to wit:

7. Its extent; that is, the number of persons to whom it extends; or (in other words) who are affected by it.

V. To take an exact account then of the general tendency of any act, by which the interests of a community are affected, proceed as follows. Begin with any one person of those whose interests seem most immediately to be affected by it: and take an account,

1. Of the value of each distinguishable pleasure which appears to be produced by it in the first instance.
2. Of the value of each pain which appears to be produced by it in the first instance.
3. Of the value of each pleasure which appears to be produced by it after the first. This constitutes the fecundity of the first pleasure and the impurity of the first pain.
4. Of the value of each pain which appears to be produced by it after the first. This constitutes the fecundity of the first pain, and the impurity of the first pleasure.
5. Sum up all the values of all the pleasures on the one side, and those of all the pains on the other. The balance, if it be on the side of pleasure, will give the good tendency of the act upon the whole, with respect to the interests of that individual person; if on the side of pain, the bad tendency of it upon the whole.
6. Take an account of the number of persons whose interests appear to be concerned; and repeat the above process with respect to each. Sum up the numbers expressive of the degrees of good tendency, which the act has, with respect to each individual, in regard to whom the tendency of it is good upon the whole: do this again with respect to each individual, in regard to whom the tendency of it is bad upon the whole. Take the balance; which, if on the side of pleasure, will give the general good tendency of the act, with respect to the total number or community of individuals concerned; if on the side of pain, the general evil tendency, with respect to the same community.

VI. It is not to be expected that this process should be strictly pursued previously to every moral judgement, or to every legislative or judicial operation. It may, however, be always kept in view: and as near as the process actually pursued on these occasions approaches to it, so near will such process approach to the character of an exact one.

VII. The same process is alike applicable to pleasure and pain, in whatever shape they appear: and by whatever denomination they are distinguished: to pleasure, whether it be called good (which is properly the cause or instrument of pleasure1) or profit (which is distant pleasure, or the cause or instrument of distant pleasure,) or convenience, or advantage, benefit, emolument, happiness, and so forth: to pain, whether it be called evil, (which corresponds to good) or mischief, or inconvenience, or disadvantage, or loss, or unhappiness, and so forth.

VIII. Nor is this a novel and unwarranted, any more than it is a useless theory. In all this there is nothing but what the practice of mankind, wheresoever they have a clear view of their own interest, is perfectly conformable to. An article of property, an estate in land, for instance, is valuable, on what account? On account of the pleasures of all kinds which it enables a man to produce, and, what comes to the same thing, the pains of all kinds which it enables him to avert. But the value of such an article of property is universally understood to rise or fall according to the length or shortness of the time which a man has in it: the certainty or uncertainty of its coming into possession: and the nearness or remoteness of the time at which, if at all, it is to come into possession. As to the intensity of the pleasures which a man may derive from it, this is never thought of, because it depends upon the use which each particular person may come to make of it; which cannot be estimated till the particular pleasures he may come to derive from it, or the particular pains he may come to exclude by means of it, are brought to view. For the same reason, neither does he think of the fecundity or purity of those pleasures.

Thus much for pleasure and pain, happiness and unhappiness, in general. We come now to consider the several particular kinds of pain and pleasure.

Chapter VII: Of Human Actions in General

I. The business of government is to promote the happiness of the society, by punishing and rewarding. That part of its business which consists in punishing, is more particularly the subject of penal law. In proportion as an act tends to disturb that happiness, in

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Chapter X: Of Motives

motives that have been placed under the name of practical. The pointing out of motives such as these, is what we frequently mean when we talk of giving reasons. Your neighbour’s house is on fire as before. I observe to you, that at the lower part of your neighbour’s house is some wood-work, which joins on to yours; that the flames have caught this wood-work, and so forth; which I do in order to dispose you to believe as I believe, that if you stay in your house much longer you will be burnt. In doing this, then, I suggest motives to your understanding; which motives, by the tendency they have to give birth to or strengthen a pain, which operates upon you in the character of an internal motive in esse, join their force, and act as motives upon the will.

§ 2: No Motives Either Constantly Good, or Constantly Bad

IX. In all this chain of motives, the principal or original link seems to be the last internal motive in prospect; it is to this that all the other motives in prospect owe their materiality: and the immediately acting motive its existence. This motive in prospect, we see, is always some pleasure, or some pain; some pleasure, which the act in question is expected to be a means of continuing or producing: some pain, which it is expected to be a means of discontinuing or preventing. A motive is substantially nothing more than pleasure or pain, operating in a certain manner.

X. Now, pleasure is in itself a good: nay, even setting aside immunity from pain, the only good: pain is in itself an evil; and, indeed, without exception, the only evil; or else the words good and evil have no meaning. And this is alike true of every sort of pain, and of every sort of pleasure. It follows, therefore, immediately and incontestably, that there is no such thing as any sort of motive that is in itself a bad one.*

XI. It is common, however, to speak of actions as proceeding from good or bad motives: in which case the motives meant are such as are internal. The expression is far from being an accurate one; and as it is apt to occur in the consideration of almost every kind of offence, it will be requisite to settle the precise meaning of it, and observe how far it quadrates with the truth of things.

XII. With respect to goodness and badness, as it is with every thing else that is not itself either pain or pleasure, so is it with motives. If they are good or bad, it is only on account of their effects: good, on account of their tendency to produce pleasure, or avert pain: bad, on account of their tendency to produce pain, or avert pleasure. Now the case is, that from one and the same motive, and from every kind of motive, may proceed actions that are good, others that are bad, and others that are indifferent. This we shall proceed to show with respect to all the different kinds of motives, as determined by the various kinds of pleasures and pains.

XIII. Such an analysis, useful as it is, will be found to be a matter of no small difficulty; owing, in great measure, to a certain perversity of structure which prevails more or less throughout all languages. To speak of motives, as of any thing else, one must call them by their names. But the misfortune is, that it is rare to meet with a motive of which the name expresses that and nothing more. Commonly, along with the very name of the motive, is tacitly involved a proposition imputing to it a certain quality; a quality which, in many cases, will appear to include that very goodness or badness, concerning which we are here inquiring whether, properly speaking, it be or be not imputable to motives. To use the common phrase, in most cases, the name of the motive is a word which is employed either only in a good sense, or else only in a bad sense. Now, when a word is spoken of as being used in a good sense, all that is necessarily meant is this: that in conjunction with the idea of the object it is put to signify, it conveys an idea of approbation: that is, of a pleasure or satisfaction, entertained by the person who employs the term at the thoughts of such object. In like manner, when a word is spoken of as being used in a bad sense, all that is necessarily meant is this: that, in conjunction with the idea of the object it is put to signify, it conveys an idea of disapprobation: that is, of a displeasure entertained by the person who employs the term at the thoughts of such object. Now, the circumstance on which such approbation is grounded will, as naturally as any other, be the opinion of the goodness of the object in question, as above explained: such, at least, it must be, upon the principle of utility: so, on the other hand, the

Footnotes