TWO: The second question is, whether it is expedient to place a reward on the head of a known criminal, and to make of every citizen an executioner by arming him against the offender. Either the criminal has fled from his country or he is still within it. In the first case the sovereign encourages the commission of a crime and exposes its author to a punishment, being thereby guilty of an injury and of an usurpation of authority in the dominions of another, and authorising other nations to do the same by himself. In the second case the sovereign displays his own weakness, for he who has the power wherewith to defend himself seeks not to purchase it. Moreover, such an edict upsets all ideas of morality and virtue,[195] which are ever ready to vanish from the human mind at the very slightest breath. Now the laws invite to treachery, and anon they punish it; with one hand the legislator tightens the bonds of the family, of kindred, and of friendship, whilst with the other he rewards whosoever violates and despises them; always in self-contradiction, he at one moment invites to confidence the suspicious natures of men, and at another scatters mistrust broadcast among them. Instead of preventing one crime, he causes a hundred. These are the resources of weak nations, whose laws are but the temporary repairs of a ruined building that totters throughout. In proportion as a nation becomes enlightened, good faith and mutual confidence become necessary, and tend ever more to identify themselves with true policy. Tricks, intrigues, dark and indirect paths, are for the most part foreseen, and the general quickness of all men collectively over-reaches and blunts that of single individuals. The very ages of ignorance, in which public morality inclines men to obey the dictates of private morality, serve as instruction and experience for the ages of enlightenment. But laws which reward treachery and stir up clandestine hostility by spreading mutual suspicion among citizens, are opposed to this union of private and public morality, a union which is so necessary, and to the observance of which individuals might owe their happiness, nations their peace, and[196] the universe a somewhat longer period of quiet and repose from the evils which at present pervade it.I speak of probability in connection with crimes, which, to deserve punishment, ought to be proved. But the paradox is only apparent, if one reflects that, strictly speaking, moral certainty is only a probability, but a probability which is called certainty, because every sensible person necessarily assents to it, by a force of habit which arises from the necessity of acting, and which is prior to all speculation. The certainty requisite for certifying that a man is a criminal is, therefore, the same that determines everyone in the most important actions of his life. The proofs of a crime may be divided into perfect and imperfect, the former being of such a[136] nature as exclude the possibility of a mans innocence, and the latter such as fall short of this certainty. Of the first kind one proof alone is sufficient for condemnation; of the second, or imperfect kind, as many are necessary as suffice to make a single perfect proof; that is to say, when, though each proof taken separately does not exclude the possibility of innocence, yet their convergence on the same point makes such innocence impossible. But let it be noted that imperfect proofs, from which an accused has it in his power to justify himself and declines to do so, become perfect. This moral certainty of proofs, however, is easier to feel than to define with exactitude: for which reason I think that the best law is one which attaches to the chief judge assessors, taken by lot, not by selection, there being in this case more safety in the ignorance which judges by sentiment than in the knowledge which judges by opinion. Where the laws are clear and precise, the function of a judge consists solely in the certification of fact. If for searching out the proofs of a crime ability and cleverness are required, and if in the presentation of the result clearness and precision are essential, all that is required to judge of the result is simple and common good sense, a faculty which is less fallacious than the learning of a judge, accustomed as he is to wish to find men guilty and to reduce everything to an artificial system borrowed from his studies. Happy the nation where the[137] laws are not a science! It is a most useful law that everyone shall be judged by his equals, because where a citizens liberty and fortune are at stake those sentiments which inequality inspires should have no voice; that feeling of superiority with which the prosperous man regards the unfortunate one, and that feeling of dislike with which an inferior regards his superior, have no scope in a judgment by ones equals. But when the crime in question is an offence against a person of a different rank from the accused, then one half of the judges should be the equals of the accused, the other half equals of the plaintiff, that so, every private interest being balanced, by which the appearances of things are involuntarily modified, only the voice of the laws and of truth may be heard. It is also in accordance with justice that an accused person should have power up to a certain point of refusing judges whom he may suspect; and if he is allowed the exercise of this power for some time without opposition, he will seem to condemn himself. Verdicts should be public, and the proofs of guilt public, in order that opinionwhich is, perhaps, the only bond of society there ismay place a check on outbursts of force and passion, and that the people may say, We are not slaves without defence: a feeling which both inspires them with courage and is as good as a tribute to a sovereign who understands his real interest. I refrain from pointing out other details and precautions which[138] require similar regulations. I should have said nothing at all, had it been necessary for me to say everything.
TWO: From political morality, unless founded on the immutable sentiments of mankind, no lasting advantage can be hoped. Whatever law deviates from these sentiments will encounter a resistance which will ultimately prevail over it, just in the same way as a force, however slight, if constantly applied, will prevail over a violent motion applied to any physical body.
