The principle of utility judges any action to be right by the tendency it appears to have to augment or diminish the happiness of the party whose interests are in question... if that party be the community the happiness of the community, if a particular individual, the happiness of that individual.

Liberty therefore not being more fit than other words in some of the instances in which it has been used, and not so fit in others, the less the use that is made of it the better. I would no more use the word liberty in my conversation when I could get another that would answer the purpose, than I would brandy in my diet, if my physician did not order me: both cloud the understanding and inflame the passions.

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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.

That which has no existence cannot be destroyed — that which cannot be destroyed cannot require anything to preserve it from destruction. Natural rights is simple nonsense: natural and imprescriptible rights, rhetorical nonsense — nonsense upon stilts. But this rhetorical nonsense ends in the old strain of mischievous nonsense for immediately a list of these pretended natural rights is given, and those are so expressed as to present to view legal rights. And of these rights, whatever they are, there is not, it seems, any one of which any government can, upon any occasion whatever, abrogate the smallest particle.

Judges of elegance and taste consider themselves as benefactors to the human race, whilst they are really only the interrupters of their pleasure … There is no taste which deserves the epithet good, unless it be the taste for such employments which, to the pleasure actually produced by them, conjoin some contingent or future utility: there is no taste which deserves to be characterized as bad, unless it be a taste for some occupation which has mischievous tendency.

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The day has been, I grieve to say in many places it is not yet past, in which the greater part of the species, under the denomination of slaves, have been treated by the law exactly upon the same footing as, in England for example, the inferior races of animals are still. The day may come when the rest of the animal creation may acquire those rights which never could have been withholden from them but by the hand of tyranny. The French have already discovered that the blackness of the skin is no reason why a human being should be abandoned without redress to the caprice of a tormentor. It may one day come to be recognized that the number of legs, the villosity of the skin, or the termination of the os sacrum are reasons equally insufficient for abandoning a sensitive being to the same fate. What else is it that should trace the insuperable line? Is it the faculty of reason, or perhaps the faculty of discourse? But a full-grown horse or dog is beyond comparison a more rational, as well as a more conversable animal, than an infant of a day or a week or even a month, old. But suppose they were otherwise, what would it avail? The question is not Can they reason?, nor Can they talk?, but Can they suffer?

Rights are, then, the fruits of the law, and of the law alone. There are no rights without law—no rights contrary to the law—no rights anterior to the law. Before the existence of laws there may be reasons for wishing that there were laws—and doubtless such reasons cannot be wanting, and those of the strongest kind;—but a reason for wishing that we possessed a right, does not constitute a right. To confound the existence of a reason for wishing that we possessed a right, with the existence of the right itself, is to confound the existence of a want with the means of relieving it. It is the same as if one should say, everybody is subject to hunger, therefore everybody has something to eat.

In looking over the catalogue of human actions (says a partizan of this principle) in order to determine which of them are to be marked with the seal of disapprobation, you need but to take counsel of your own feelings: whatever you find in yourself a propensity to condemn, is wrong for that very reason. For the same reason it is also meet for punishment: in what proportion it is adverse to utility, or whether it be adverse to utility at all, is a matter that makes no difference. In that same proportion also is it meet for punishment: if you hate much, punish much: if you hate little, punish little: punish as you hate. If you hate not at all, punish not at all: the fine feelings of the soul are not to be overborne and tyrannized by the harsh and rugged dictates of political utility.

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It is part of a work to which if ever it should be completed I intend to give some such title as Principles of Legal Policy; the object of it is to trace out a new model for the Laws: of my own country you may imagine, in the first place: but keeping those of other countries all along in view. To ascertain what the Laws ought to be, in form and tenor as well as in matter: and that elsewhere as well as here. All that I shall say to recommend it to you is that I have taken counsel of you much oftener than of our own Ld. Coke and Hale and Blackstone. The repose of Grotius and Puffendorf and Barbeyrac and Burlamaqui I would never wish to see disturbed. I have built solely on the foundation of utility, laid as it is by Helvetius. Becarria has been lucrative pedibus, or if you please manibus, meis.