only as he dwells upon, and enjoys that; the obligation any one is under, by virtue of such enjoyment, to submit to the government, begins and ends with the enjoyment; so that whenever the owner, who has given nothing but such a tacit consent to the government, will, by donation, sale, or otherwise, quit the said possession, he is at liberty to go and incorporate himself into any other commonwealth; or to agree with others to begin a new one, in vacuis locis, in any part of the world, they can find free and unpossessed: whereas he, that has once, by actual agreement, and any express declaration, given his consent to be of any commonwealth, is perpetually and indispensably obliged to be, and remain unalterably a subject to it, and can never be again in the liberty of the state of nature; unless, by any calamity, the government he was under comes to be dissolved; or else by some public act cuts him off from being any longer a member of it.