For these two are the only reasons why one man may lawfully do harm to another, which is that we call punishment. In transgressing the law of Nature, the offender declares himself to live by another rule than that of reason and common equity, which is that measure God has set to the actions of men for their mutual security, and so he becomes dangerous to mankind; the tie which is to secure them from injury and violence being slighted and broken by him, which being a trespass against the whole species, and the peace and safety of it, provided for by the law of Nature, every man upon this score, by the right he hath to preserve mankind in general, may restrain, or where it is necessary, destroy things noxious to them, and so may bring such evil on any one who hath transgressed that law, as may make him repent the doing of it, and thereby deter him, and, by his example, others from doing the like mischief. And in this case, and upon this ground, every man hath a right to punish the offender, and be executioner of the law of Nature. .
9. I doubt not but this will seem a very strange doctrine to some men; but before they condemn it, I desire them to resolve me by what right any prince or state can put to death or punish an alien for any crime he commits in their country? It is certain their laws, by virtue of any sanction they receive from the promulgated will of the legislature, reach not a stranger. They speak not to him, nor, if they did, is he bound to hearken to them. The legislative authority by which they are in force over the subjects of that commonwealth hath no power over him. Those who have the supreme power of making laws in England, France, or Holland are, to an Indian, but like the rest of the world- men without authority. And therefore, if by the law of Nature every man hath not a power to punish offences against it, as he soberly judges the case to require, I see not how the magistrates of any community can punish an alien of another country, since, in reference to him, they can have no more power than what every man naturally may have over another.
