Who can read history without being horror-struck at the barbarous and useless torments which men, who were called wise, in cold blood devised and executed? Who is there but must feel his blood boil, when he regards the thousands of wretches whom misery, either intended or tolerated by the laws (which have always favoured the few and outraged the many), has driven to a desperate return to the original state of nature; when he sees them either accused by men endowed with the same senses, and consequently with the same passions as themselves, of impossible crimes, the fiction of timid ignorance, or guilty of nothing but fidelity to their own principles; and when he sees them lacerated by slow tortures, subject to well-contrived formalities, an agreeable sight for a fanatical multitude?
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.
The more cruel punishments become, the more human minds harden, adjusting themselves, like fluids, to the level of objects around them; and the ever living force of the passions brings it about, that after a hundred years of cruel punishments, the wheel frightens men only just as much as at first did the punishment of prison.
The very severity of a punishment leads men to dare so much the more to escape it, according to the greatness of the evil in prospect; and many crimes are thus committed to avoid the penalty of a single one. Countries and times where punishments have been most severe have ever been those where the bloodiest and most inhuman deeds have been committed, the same spirit of ferocity that guided the hand of the legislator having guided also that of the parricide and assassin; on the throne dictating iron[168] laws for the villanous souls of slaves to obey, and in the obscurity of private life urging to the slaughter of tyrants, only to create fresh ones in their stead.
Two other fatal consequences flow from the cruelty of punishments, and are contrary to their very purpose, the prevention of crimes. The first is, that it is not so easy to preserve the essential proportion between crime and punishment, because, however much a studied cruelty may diversify its forms, none of them can go beyond the extreme limit of endurance which is a condition of the human organisation and sensibility. When once this extreme limit is attained, it would be impossible to invent such a corresponding increase of punishment for still more injurious and atrocious crimes as would be necessary to prevent them. The other consequence is, that impunity itself arises from the severity of punishments. Men are restrained within limits both in good and evil; and a sight too atrocious for humanity can only be a passing rage, not a constant system, such as the laws ought to be; if the latter are really cruel, either they are changed, or themselves give rise to a fatal impunity.
I conclude with this reflection, that the scale of punishments should be relative to the condition of a nation. On the hardened minds of a people scarcely emerged from the savage state the impressions made should be stronger and more sensible. One needs a[169] thunderbolt for the destruction of a fierce lion that faces round at the shot of a gun. But in proportion as men’s minds become softened in the social state, their sensibility increases, and commensurate with that increase should be the diminution of the force of punishment, if it be desired to maintain any proportion between the object and the sensation that attends it.