may change the state already established into some other, as when they propose to erect an oligarchy where there is a democracy; or a democracy, or free state, where there is an oligarchy, or an aristocracy from these, or those from that; or else, when they have no objection to the established government, which they like very well, but choose to have the sole management in it themselves; either in the hands of a few or one only. They will also raise commotions concerning the degree in which they would have the established power; as if, for instance, the government is an oligarchy, to have it more purely so, and in the same manner if it is a democracy, or else to have it less so; and, in like manner, whatever may be the nature of the government, either to extend or contract its powers; or else to make some alterations in some parts of it; as to establish or abolish a particular magistracy, as some persons say Lysander endeavoured to abolish the kingly power in Sparta; and Pausanias that of the ephori. Thus in Epidamnus there was an alteration in one part of the constitution, for instead of the philarchi they established a senate. It is also necessary for all the magistrates at Athens; to attend in the court of the Helisea when any new magistrate is created: the power of the archon also in that state partakes of the nature of an oligarchy: inequality is always the occasion of sedition, but not when those who are unequal are treated in a different manner correspondent to that inequality. Thus kingly power is unequal when exercised over equals. Upon the whole, those who aim after an equality are the cause of seditions. Equality is twofold, either in number or value. Equality in number is when two things contain the same parts or the same quantity; equality in value is by proportion as two exceeds one, and three two by the same number-thus by proportion four exceeds two, and two one in the same degree, for two is the same part of four that one is of two; that is to say, half. Now, all agree in what is absolutely and simply just; but, as we have already said they dispute concerning proportionate value; for some persons, if they are equal in one respect, think themselves equal in all; others, if they are superior in one thing, think they may claim the superiority in all; from whence chiefly arise two sorts of governments, a democracy and an oligarchy; for nobility and virtue are to be found only [1302a] amongst a few; the contrary amongst the many; there being in no place a hundred of the first to be met with, but enough of the last everywhere. But to establish a government entirely upon either of these equalities is wrong, and this the example of those so established makes evident, for none of them have been stable; and for this reason, that it is impossible that whatever is wrong at the first and in its principles should not at last meet with a bad end: for which reason in some things