The subject of punishment is perhaps the most fundamental in the science of politics. Men associated for the sake of mutual protection and benefit.

It has already appeared that the internal affairs of such associations are of an inexpressibly higher importance than their external. It has appeared that the action of society, in conferring rewards, and superintending opinion, is of pernicious effect. Hence it follows that government, or the action of society in its corporate capacity, can scarcely be of any utility except so far as it is requisite for the suppression of force by force; for the prevention of the hostile attack of one member of the society, upon the person or property of another, which prevention is usually called by the name of criminal justice, or punishment.

Before we can properly judge of the necessity or urgency of this action of government, it will be of some importance to consider the precise import of the word punishment. I may employ force to counteract the hostility that is actually committing on me. I may employ force to compel any member of the society to occupy the post that I conceive most conducive to the general advantage, either in the mode of impressing soldiers and sailors, or by obliging a military officer, or a minister of state, to accept, or retain his appointment. I may put a valuable man to death for the common good, either because he is infected with a pestilential disease, or because some oracle has declared it essential to the public safety. None of these, though they consist in exertion of force for some moral purpose, comes within the import of the word punishment. Punishment is also often used to signify the voluntary infliction of evil upon a vicious being, not merely because the public advantage demands it, but because there is apprehended to be a certain fitness and propriety in the nature of things that render suffering, abstractedly from the benefit to result, the suitable concomitant of vice.