it is better to prevent crimes than to punish them. this is the chief aim of every good system of legislation, which is the art of leading men to the greatest possible happiness or to the least possible misery,[243] according to calculation of all the goods and evils of life. but the means hitherto employed for this end are for the most part false and contrary to the end proposed. it is impossible to reduce the turbulent activity of men to a geometrical harmony without any irregularity or confusion. as the constant and most simple laws of nature do not prevent aberrations in the movements of the planets, so, in the infinite and contradictory attractions of pleasure and pain, disturbances and disorder cannot be prevented by human laws. yet this is the chimera that narrow-minded men pursue, when they have power in their hands. to prohibit a number of indifferent acts is not to prevent the crimes that may arise from them, but it is to create new ones from them; it is to give capricious definitions of virtue and vice which are proclaimed as eternal and immutable in their nature. to what should we be reduced if everything had to be forbidden us which might tempt us to a crime? it would be necessary to deprive a man of the use of his senses. for one motive that drives men to commit a real crime there are a thousand that drive them to the commission of those indifferent acts which are called crimes by bad laws; and if the likelihood of crimes is proportioned to the number of motives to commit them, an increase of the field of crimes is an increase of the likelihood of their commission. the majority of laws are nothing but[244] privileges, or a tribute paid by all to the convenience of some few.

would you prevent crimes, then cause the laws to be clear and simple, bring the whole force of a nation to bear on their defence, and suffer no part of it to be busied in overthrowing them. make the laws to favour not so much classes of men as men themselves. cause men to fear the laws and the laws alone. salutary is the fear of the law, but fatal and fertile in crime is the fear of one man of another. men as slaves are more sensual, more immoral, more cruel than free men; and, whilst the latter give their minds to the sciences or to the interests of their country, setting great objects before them as their model, the former, contented with the passing day, seek in the excitement of libertinage a distraction from the nothingness of their existence, and, accustomed to an uncertainty of result in everything, they look upon the result of their crimes as uncertain too, and so decide in favour of the passion that tempts them. if uncertainty of the laws affects a nation, rendered indolent by its climate, its indolence and stupidity is thereby maintained and increased; if it affects a nation, which though fond of pleasure is also full of energy, it wastes that energy in a number of petty cabals and intrigues, which spread distrust in every heart, and make treachery and dissimulation the foundation of prudence; if, again, it affects a[245] courageous and brave nation, the uncertainty is ultimately destroyed, after many oscillations from liberty to servitude, and from servitude back again to liberty.

would you prevent crimes, then see that enlightenment accompanies liberty. the evils that flow from knowledge are in inverse ratio to its diffusion; the benefits directly proportioned to it. a bold impostor, who is never a commonplace man, is adored by an ignorant people, despised by an enlightened one. knowledge, by facilitating comparisons between objects and multiplying men’s points of view, brings many different notions into contrast, causing them to modify one another, all the more easily as the same views and the same difficulties are observed in others. in the face of a widely diffused national enlightenment the calumnies of ignorance are silent, and authority, disarmed of pretexts for its manifestation, trembles; whilst the rigorous force of the laws remains unshaken, no one of education having any dislike to the clear and useful public compacts which secure the common safety, when he compares the trifling and useless liberty sacrificed by himself with the sum-total of all the liberties sacrificed by others, who without the laws might have been hostile to himself. whoever has a sensitive soul, when he contemplates a code of well-made laws, and finds that he has only lost the pernicious liberty of injuring others, will feel[246] himself constrained to bless the throne and the monarch that sits upon it.

it is not true that the sciences have always been injurious to mankind; when they were so, it was an inevitable evil. the multiplication of the human race over the face of the earth introduced war, the ruder arts, and the first laws, mere temporary agreements which perished with the necessity that gave rise to them. this was mankind’s primitive philosophy, the few elements of which were just, because the indolence and slight wisdom of their framers preserved them from error. but with the multiplication of men there went ever a multiplication of their wants. stronger and more lasting impressions were, therefore, needed, in order to turn them back from repeated lapses to that primitive state of disunion which each return to it rendered worse. those primitive delusions, therefore, which peopled the earth with false divinities and created an invisible universe that governed our own, conferred a great benefit—i mean a great political benefit—upon humanity. those men were benefactors of their kind, who dared to deceive them and drag them, docile and ignorant, to worship at the altars. by presenting to them objects that lay beyond the scope of sense and fled from their grasp the nearer they seemed to approach them—never despised, because never well understood—they concentrated their divided passions upon a single object[247] of supreme interest to them. these were the first steps of all the nations that formed themselves out of savage tribes; this was the epoch when larger communities were formed, and such was their necessary and perhaps their only bond. i say nothing of that chosen people of god, for whom the most extraordinary miracles and the most signal favours were a substitute for human policy. but as it is the quality of error to fall into infinite subdivisions, so the sciences that grew out of it made of mankind a blind fanatical multitude, which, shut up within a close labyrinth, collides together in such confusion, that some sensitive and philosophical minds have regretted to this day the ancient savage state. that is the first epoch in which the sciences or rather opinions are injurious.

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 men’s 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?

if blind ignorance is less pernicious than confused half-knowledge, since the latter adds to the evils of ignorance those of error, which is unavoidable in a narrow view of the limits of truth, the most precious gift that a sovereign can make to himself or to his people is an enlightened man as the trustee and guardian of the sacred laws. accustomed to see the truth and not to fear it; independent for the most part of the demands of reputation, which are never completely satisfied and put most men’s virtue to a trial; used to consider humanity from higher points of view; such a man regards his own nation as a family of men and of brothers, and the distance between the nobles and the people seems to him so[249] much the less as he has before his mind the larger total of the whole human species. philosophers acquire wants and interests unknown to the generality of men, but that one above all others, of not belying in public the principles they have taught in obscurity, and they gain the habit of loving the truth for its own sake. a selection of such men makes the happiness of a people, but a happiness which is only transitory, unless good laws so increase their number as to lessen the probability, always considerable, of an unfortunate choice.

another way of preventing crimes is to interest the magistrates who carry out the laws in seeking rather to preserve than to corrupt them. the greater the number of men who compose the magistracy, the less danger will there be of their exercising any undue power over the laws; for venality is more difficult among men who are under the close observation of one another, and their inducement to increase their individual authority diminishes in proportion to the smallness of the share of it that can fall to each of them, especially when they compare it with the risk of the attempt. if the sovereign accustoms his subjects, by formalities and pomp, by severe edicts, and by refusal to hear the grievances, whether just or unjust, of the man who thinks himself oppressed, to fear rather the magistrates than the[250] laws, it will be more to the profit of the magistrates than to the gain of private and public security.

another way to prevent crimes is to reward virtue. on this head i notice a general silence in the laws of all nations to this day. if prizes offered by academies to the discoverers of useful truths have caused the multiplication of knowledge and of good books, why should not virtuous actions also be multiplied, by prizes distributed from the munificence of the sovereign? the money of honour ever remains unexhausted and fruitful in the hands of the legislator who wisely distributes it.

lastly, the surest but most difficult means of preventing crimes is to improve education—a subject too vast for present discussion, and lying beyond the limits of my treatise; a subject, i will also say, too intimately connected with the nature of government for it ever to be aught but a barren field, only cultivated here and there by a few philosophers, down to the remotest ages of public prosperity. a great man, who enlightens the humanity that persecutes him, has shown in detail the chief educational maxims of real utility to mankind; namely, that it consists less in a barren multiplicity of subjects than in their choice selection; in substituting originals for copies in the moral as in the physical phenomena presented by chance or intention to the fresh minds of youth; in inclining them to virtue by the easy path of feeling;[251] and in deterring them from evil by the sure path of necessity and disadvantage, not by the uncertain method of command, which never obtains more than a simulated and transitory obedience.