V. A dramatic writer has said that "the pain of an enemy is a healing remedy to a wounded spirit," in which he agrees with Cicero and Plutarch: in the opinion of the former "pain is mitigated by the punishment of an adversary," and in that of the latter "satisfaction is a sweet medicine to a troubled mind." But a disposition like this, when stripped of all disguise and false colouring, will be found by no means suitable to the reasonable soul of man, whose office it is to regulate and controul the affections. Nor will that disposition receive any sanction from the law of nature, who in all her dictates, inclines to unite men in society by good will, rather than to separate them by cherishing animosity. For it is laid down by reason, as a leading axiom in her code of laws, that no man shall do any thing which may hurt another, unless it be for the purpose of some evident and essential good. But the pain of an enemy considered solely of such, is no benefit to us, but a false and imaginary one, like that derived from superfluous riches or things of the same kind.[53] In this acceptation revenge is condemned both by Christian teachers and heathen philosophers. In this respect, the language of Seneca approaches very near to the perfection of Christian morals. He calls revenge, in its usual and proper acceptation, a term of inhumanity, differing from injury only in degree. For retaliation of pain can be considered as nothing better than excusable sin. Juvenal, after describing the different tempers, over which revenge exercises the most powerful dominion, and shewing the amiable characters over which it has no influence, concludes it to be the pleasure of a little and infirm mind. From the preceding arguments it is plain that punishment cannot justly be inflicted from a spirit of revenge. We proceed therefore to consider the advantages attending its just infliction.