remedying the inconvenience. The right to protest against and to prohibit them rests with the suffering party; but because this point of the greatest interest is less clear in some cases than in others, it does not follow that there is no right or principle of justice in the case. 3. As to matters of contempt and the expression of opinion, I think these do not fall under the head of force, and are not, on that ground, subjects of coercion and law. For example, if a person inflicts a sensation upon me by material means, whether tangible or otherwise, I cannot help that sensation; I am so far the slave of that other, and have no means of resisting him but by force, which I would define to be material agency. But if another proposes an opinion to me, I am not bound to be of this opinion; my judgment and will is left free, and therefore I have no right to resort to force to recover a liberty which I have not lost. If I do this to prevent that other from pressing that opinion, it is I who invade his liberty, without warrant, because without necessity. It may be urged that material agency, or force, is used in the adoption of sounds or letters of the alphabet, which I cannot help seeing or hearing. But the injury is not here, but in the moral and artificial inference, which I am at liberty to admit or reject, according to the evidence. There is no force but argument in the case, and it is reason, not the will of another, that gives the law. Further, the opinion expressed, generally concerns not one individual, but the general interest; and of that my approbation or disapprobation is not a commensurate or the sole judge. I am judge of my own interests, because it is my affair, and no one's else; but by the same rule, I am not judge, nor have I a _veto_ on that which appeals to all the world, merely because I have a prejudice or fancy against it. But suppose another expresses by signs or words a contempt for me? _Answer._ I do not know that he is bound to have a respect for me. Opinion is free; for if I wish him to have that respect, then he must be left free to judge for himself, and consequently to arrive at and to express the contrary opinion, or otherwise the verdict and testimony I aim at could not be obtained; just as players must consent to be hissed if they expect to be applauded. Opinion cannot be forced, for it is not grounded on force, but on evidence and reason, and therefore these last are the proper instruments to control that opinion, and to make it favourable to what we wish, or hostile to what we disapprove. In what relates to action, the will of another is force, or the determining power: in what relates to opinion, the mere will or _ipse dixit_ of another is of no avail but as it gains over other opinions to its side, and therefore neither needs nor admits of force as a counteracting means to be used against it. But in the case of calumny or indecency: 1. I would say that it is the suppression of truth that gives falsehood its worst