But whether the international extradition of criminals be useful I would not venture to decide, until laws more in conformity with the needs of humanity, until milder penalties, and until the emancipation of law from the caprice of mere opinion, shall have given security to oppressed innocence and hated virtue; until tyranny shall have been confined, by the force of universal reason which ever more and more unites the interests of kings and subjects, to the vast plains of Asia; however much the conviction of finding nowhere a span of earth where real crimes were pardoned might be the most efficacious way of preventing their occurrence.
CHAPTER XXII.
OF PROSCRIPTION.
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, 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 the universe a somewhat longer period of quiet and repose from the evils which at present pervade it.
CHAPTER XXIII.
PROPORTION BETWEEN CRIMES AND PUNISHMENTS.
Not only is it the general interest that crimes should not be committed, but that they should be rare in proportion to the evils they cause to society. The more opposed therefore that crimes are to the public welfare, and the more numerous the incentives to them, the stronger should be the repellent obstacles. This principle accordingly establishes the necessity of a certain proportion between crimes and punishments.
If pleasure and pain are the motors of sensitive beings, if the invisible lawgiver of humanity has decreed rewards and punishments as one of the motives to impel men to even their noblest endeavours, the inexact distribution of these motives will give rise to that contradiction, as little noticed as it is of common occurrence, namely, that the laws punish crimes which are entirely of their own creation. If an equal penalty is attached to two crimes of unequal injury to society, the greater crime of the two, if it promise a greater advantage than the other, will have no stronger motive in restraint of its perpetration. Whoever, for example, sees the same punishment of death decreed for the man who kills a pheasant and the man who slays his fellow or falsifies an important document, will draw no distinction between such crimes; and thus moral sentiments, the product only of many ages and of much bloodshed, the slowest and most difficult attainment of the human mind, dependent, it has been thought, on the aid of the most sublime motives and on a parade of the gravest formalities, will be destroyed and lost.
It is impossible to prevent all the disorders that may arise in the universal conflict of human passions. Their increase depends on that of population and on the crossings of private interests, which cannot be directed with geometrical exactness to the public welfare. In political arithmetic the calculation of probabilities must be substituted for mathematical exactness. Glance at the history of the world, and you will see disorders increase with the increase of the bounds of empire; thus national feeling being to the same extent diminished, the general inducement to crime increases with the greater interest of each individual in such disorders, and on this account the necessity for aggravating penalties ever continues to increase.
That force, similar to the force of gravitation, which constrains us to seek our own well-being, only admits of counteraction in proportion to the obstacles opposed to it. The effects of this force make up the confused series of human actions; if these clash together and impede one another, punishments, which I would call political obstacles, prevent bad effects from resulting, without destroying the impelling cause, which lies in the sensibility inseparable from humanity; and the legislator, in enacting them, acts the part of a clever architect, whose function it is to counteract the tendency of gravitation to cause a building to fall, and to bring to bear all the lines which contribute to its strength.