So a tribe is the third division of land occasioned by the third collection of the people, whose functions proper to that place are contained in the five foregoing orders. The institution of the commonwealth was such as needed those props and scaffolds which may have troubled the reader; but I shall here take them away, and come to the constitution which stands by itself, and yields a clearer prospect. The motions, by what has been already shown, are spherical; and spherical motions have their proper centre, for which cause (ere I proceed further) it will be necessary, for the better understanding of the whole, that I discover the centre whereupon the motions of this commonwealth are formed. The centre, or basis of every government, is no other than the fundamental laws of the same. Fundamental laws are such as state what it is that a man, and what the means may call his own, that is to say, property; be whereby a man may enjoy his own, that is to say, protection. The first is also called dominion, and the second empire or sovereign power, whereof this (as has been shown) is the natural product of the former, for such as is the balance of dominion in a nation, such is the nature of its empire. Wherefore the fundamental laws of Oceana, or the centre of this commonwealth, are the agrarian and the ballot: the agrarian by the balance of dominion preserving equality in the root; and the ballot by an equal rotation conveying it into the branch, or exercise of sovereign power, as, to begin with the former, appears by--