Lastly, among the crimes of the third kind are especially those which disturb the public peace and civic tranquillity; such as noises and riots in the public streets, which were made for the convenience of men and traffic, or fanatical sermons that excite the easily roused passions of the curious multitude. For their passions gather force from the number of hearers, and more from a certain obscure and mysterious enthusiasm, than from clear and quiet reasoning, which never has any influence over a large mass of men.
In order that a punishment may attain its object, it is enough if the evil of the punishment exceeds the advantage of the crime, and in this excess of evil the certainty of punishment and the loss of the possible advantage from the crime ought to be considered as part; all beyond this is superfluous and consequently tyrannical. Men regulate their conduct by the reiterated impression of evils they know, not by reason of evils they ignore. Given two nations, in one of which, in the scale of punishments proportioned[167] to the scale of crimes, the severest penalty is perpetual servitude, and in the other the wheel; I say that the former will have as great a dread of its severest punishment as the latter will have; and if there be any reason for transporting to the former country the greater penalties of the other, the same reasoning will serve for increasing still more the penalties of this latter country, passing imperceptibly from the wheel to the slowest and most elaborate tortures, nay, even to the last refinements of that science which tyrants understand only too well.It is not useless to repeat what others have written, namely, that the best method of preventing this crime is to punish the aggressorin other words, the man who gives rise to the dueldeclaring him to be innocent who without his own fault has been constrained to defend that which existing laws do not assure to him, that is, opinion.Ramsay argues that the penal laws of a particular country can only be considered with reference to the needs of a particular country, and not in the abstract; that the government of a country will always enforce laws with a view to its own security; and that nothing less than a general revolution will ever make the holders of political power listen for a moment to the claims of philosophers.But the laws should fix a certain space of time both for the defence of the accused and for the discovery[158] of proofs against him. It would place the judge in the position of a legislator were it his duty to fix the time necessary for the latter. In the same way those atrocious crimes, whose memory tarries long in mens minds, deserve, when once proved, no prescription in favour of a criminal who has fled from his country; but lesser and obscure crimes should be allowed a certain prescription, which may remove a mans uncertainty concerning his fate, because the obscurity in which for a long time his crimes have been involved deducts from the bad example of his impunity, and the possibility of reform meantime remains to him. It is enough to indicate these principles, because I cannot fix a precise limit of time, except for a given system of laws and in given social circumstances. I will only add that, the advantage of moderate penalties in a nation being proved, the laws which shorten or lengthen, according to the gravity of crimes, the term of prescription or of proofs, thus making of prison itself or of voluntary exile a part of the punishment, will supply an easy classification of a few mild punishments for a very large number of crimes.
