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 rightly 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 blamable, 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 endeavouring 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 may be given to the police, gambling-houses 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.
