TWO:There are three sources of the moral and political principles which govern mankind, namely, revelation, natural law, and social conventions. With regard to their principal object there is no comparison between the first and the other two, but they all resemble one another in this, that they all three conduce to the happiness of this present mortal life. To consider the different relations of social conventions is not to exclude those of revelation and natural law; rather it is the thousandfold changes which revelation and natural law, divine and immutable though they be, have undergone in the depraved mind of man, by his own fault, owing to false religions and arbitrary notions of virtue and vice, that make it appear necessary to examine, apart from all other considerations, the result of purely human conventions, expressed or implied, for the public need and welfare: this being an idea in which every sect and every moral system must necessarily agree; and it will always be a laudable endeavour, which seeks to constrain the headstrong and unbelieving to conform to the principles that induce men to live together in society. There are, then, three distinct kinds of virtue and vice��the religious, the natural, and the political. These three kinds ought never to conflict, although all the consequences and duties that flow from any one of them do not necessarily flow from the others. The natural law does not require all that revelation requires,[114] nor does the purely social law require all that natural law requires; but it is most important to distinguish the consequences of the conventional law��that is, of the express or tacit agreements among men��from the consequences of the natural law or of revelation, because therein lies the limit of that power, which can rightly be exercised between man and man without a special mandate from the Supreme Being. Consequently the idea of political virtue may, without any slur upon it, be said to be variable; that of natural virtue would be always clear and manifest, were it not obscured by the stupidity or the passions of men; whilst the idea of religious virtue remains ever one and the same, because revealed directly from God and by Him preserved.

TWO:The close connection, therefore, of crime and punishment is of the utmost importance, if it be desirable that in rough and common minds there should, together with the seductive idea of an advantageous crime, immediately start up the associated idea of its punishment. Long delay has no other effect than the perpetual separation of these two ideas; and whatever the impression produced by the punishment of a crime, it produces it less as a punishment than as a sight, and only produces it when the horror of the particular crime, which would serve to strengthen the feeling of the punishment, has been weakened in the minds of the spectators.What are the pretexts by which secret accusations and punishments are justified? Are they the public welfare, the security and maintenance of the form of government? But how strange a constitution is that, where he who has force on his side, and opinion, which is even stronger than force, is afraid of every citizen! Is then the indemnity of the accuser the excuse? In that case the laws do not sufficiently defend him; and shall there be subjects stronger than their sovereign? Or is it to save the informer from infamy? What! secret calumny be fair and lawful, and an open one deserving of punishment! Is it, then, the nature of the crime? If indifferent actions, or even useful actions, are called crimes, then of course accusations and trials can never be secret enough. But how can there be crimes, that is, public injuries, unless the publicity of this example, by a public trial, be at the same time[144] the interest of all men? I respect every government, and speak of none in particular. Circumstances are sometimes such that to remove an evil may seem utter ruin when it is inherent in a national system. But had I to dictate new laws in any forgotten corner of the universe, my hand would tremble and all posterity would rise before my eyes before I would authorise such a custom as that of secret accusations.