them.  As a refuge from the last of the three, men imagined what they called the freedom of the will; fancying that they could not justify punishing a man whose will is in a thoroughly hateful state, unless it be supposed to have come into that state through no influence of anterior circumstances.  To escape from the other difficulties, a favourite contrivance has been the fiction of a contract, whereby at some unknown period all the members of society engaged to obey the laws, and consented to be punished for any disobedience to them; thereby giving to their legislators the right, which it is assumed they would not otherwise have had, of punishing them, either for their own good or for that of society.  This happy thought was considered to get rid of the whole difficulty, and to legitimate the infliction of punishment, in virtue of another received maxim of justice, volenti non fit injuria; that is not unjust which is done with the consent of the person who is supposed to be hurt by it.  I need hardly remark, that even if the consent were not a mere fiction, this maxim is not superior in authority to the others which it is brought in to supersede.  It is, on the contrary, an instructive specimen of the loose and irregular manner in which supposed principles of justice grow up.  This particular one evidently came into use as a help to the coarse exigencies of courts of law, which are sometimes obliged to be content with very uncertain presumptions, on account of the greater evils which would often arise from any attempt on their part to cut finer.  But even courts of law are not able to adhere consistently to the maxim, for they allow voluntary engagements to be set aside on the ground of fraud, and sometimes on that of mere mistake or misinformation.

Again, when the legitimacy of inflicting punishment is admitted, how many conflicting conceptions of justice come to light in discussing the proper apportionment of punishment to offences.  No rule on this subject recommends itself so strongly to the primitive and spontaneous sentiment of justice, as the lex talionis, an eye for an eye and a tooth for a tooth.  Though this principle of the Jewish and of the Mahomedan law has been generally abandoned in Europe as a practical maxim, there is, I suspect, in most minds, a secret hankering after it; and when retribution accidentally falls on an offender in that precise shape, the general feeling of satisfaction evinced, bears witness how natural is the sentiment to which this repayment in kind is acceptable.  With many the test of justice in penal infliction is that the punishment should be proportioned to the offence; meaning that it should be exactly measured by the moral guilt of the culprit (whatever be their standard for measuring moral guilt):  the consideration, what amount of punishment is necessary to deter from the offence, having nothing to do with the question of justice, in their estimation:  while there are others to whom that consideration is all in all; who maintain that it is not just, at least for man, to inflict on a fellow creature, whatever may be his offences, any amount of suffering beyond the least that will suffice to prevent him from repeating, and others from imitating, his misconduct.