If every person has the right to defend - even by force - his person, his liberty, and his property, then it follows that a group of men have the right to organize and support a common force to protect these rights constantly. Thus, since an individual cannot lawfully use force against the person, liberty, or property of another individual, then the common force - for the same reason - cannot lawfully be used to destroy the person, liberty, or property of individuals or groups.
