But every subject in a commonwealth hath covenanted to obey the civil law; either one with another, as when they assemble to make a common representative, or with the representative itself one by one, when subdued by the sword they promise obedience, that they may receive life; and therefore obedience to the civil law is part also of the law of Nature. Civil and natural law are not different kinds, but different parts of law; whereof one part being written, is called civil, the other unwritten, natural. But the right of nature, that is, the natural liberty of man, may by the civil law be abridged and restrained: nay, the end of making laws is no other but such restraint; without the which there cannot possibly be any peace. And law was brought into the world for nothing else but to limit the natural liberty of particular men, in such manner as they might not hurt, but assist one another, and join together against a common enemy.