ONE: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.
TWO:As it, then, was necessity which constrained men to yield a part of their individual liberty, it is certain that each would only place in the general deposit the least possible portiononly so much, that is, as would suffice to induce others to defend it. The aggregate of these least possible portions constitutes the right of punishment; all that is beyond this is an abuse and not justice, a fact but not a right.[64] Punishments[124] which exceed what is necessary to preserve the deposit of the public safety are in their nature unjust; and the more just punishments are, the more sacred and inviolable is personal security, and the greater the liberty that the sovereign preserves for his subjects.The second epoch of history consists in the hard and terrible transition from errors to truth, from the darkness of ignorance to the light. The great clash between the errors which are serviceable to a few men of power and the truths which are serviceable to the weak and the many, and the contact and fermentation of the passions at such a period aroused, are a source of infinite evils to unhappy humanity. Whoever ponders on the different histories of the world, which after certain intervals of time are so much alike in their principal episodes, will therein frequently observe the sacrifice of a whole generation[248] to the welfare of succeeding ones, in the painful but necessary transition from the darkness of ignorance to the light of philosophy, and from despotism to freedom, which result from the sacrifice. But when truth, whose progress at first is slow and afterwards rapid (after mens minds have calmed down and the fire is quenched that purged a nation of the evils it suffered), sits as the companion of kings upon the throne, and is reverenced and worshipped in the parliaments of free governments, who will ever dare assert that the light which enlightens the people is more injurious than darkness, and that acknowledging the true and simple relations of things is pernicious to mankind?
