External are from enemies, from subjects, or from servants. To dispute then what was the cause why Rome was infested by the Italian, or by the servile wars; why the slaves took the capitol;why the Lacedaemonians were near as frequently troubled with their helots as Rome with all those; or why Venice, whose situation is not trusted to the faith of men, has as good or better quarter with them whom she governs, than Rome had with the Latins; were to dispute upon external causes. The question put by Machiavel is of internal causes; whether the enmity that Was between the Senate and the people of Rome might have been removed. And to determine otherwise of this question than he does, I must lay down other principles than he has done. To which end I affirm that a commonwealth, internally considered, is either equal or unequal. A commonwealth that is internally equal, has no internal cause of commotion, and therefore can have no such effect but from without. A commonwealth internally unequal has no internal cause of quiet, and therefore can have no such effect but by diversion.
"To prove my assertions, I shall at this time make use of no other than his examples. Lacedaemon was externally unquiet, because she was externally unequal, that is as to her helots; and she was internally at rest, because she was equal in herself, both in root and branch; in the root by her agrarian, and in branch by the Senate, inasmuch as no man was thereto qualified but by election of the people. Which institution of Lycurgus is mentioned by Aristotle, where he says that rendering his citizens emulous (not careless) of that honor, he assigned to the people the election of the Senate. Wherefore Machiavel in this, as in other places, having his eye upon the division of patrician and plebeian families as they were in Rome, has quite mistaken the orders of this commonwealth, where there was no such thing. Nor did the quiet of it derive from the power of the kings, who were so far from shielding the people from the injury of the nobility, of which there was none in his sense but the Senate, that one declared end of the Senate at the institution was to shield the people from the kings, who from that time had but single votes.
Neither did it proceed from the straitness of the Senate, or their keeping the people excluded from the government, that they were quiet, but from the equality of their administration, seeing the Senate (as is plain by the oracle, their fundamental law) had no more than the debate, and the result of the commonwealth belonged to the people.
"Wherefore when Theopompus and Polydorus, Kings of Lacedaemon, would have kept the people excluded from the government by adding to the ancient law this clause, 'If the determination of the people be faulty, it shall be lawful for the Senate to resume the debate,' the people immediately became unquiet, and resumed that debate, which ended not till they had set up their ephors, and caused that magistracy to be confirmed by their kings.' For when Theopompus first ordained that the ephori or overseers should be created at Lacedaemon, to be such a restraint upon the kings there as the tribunes were upon the consuls at Rome, the Queen complained to him, that by this means he transmitted the royal authority greatly diminished to his children: "I leave indeed less," answered he, "but more lasting."And this was excellently said; for that power only is safe which is limited from doing hurt. Theopompus therefore, by confining the kingly power within the bounds of the laws, did recommend it by so much to the people's affection as he removed it from being arbitrary.' By which it may appear that a commonwealth for preservation, if she comes to be unequal, is as obnoxious to enmity between the Senate and the people as a commonwealth for increase; and that the tranquillity of Lacedaemon was derived from no other cause than her equality.
"For Venice, to say that she is quiet because she disarms her subjects, is to forget that Lacedaemon disarmed her helots, and yet could not in their regard be quiet; wherefore if Venice be defended from external causes of commotion, it is first through her situation, in which respect her subjects have no hope (and this indeed may be attributed to her fortune); and, secondly, through her exquisite justice, whence they have no will to invade her. But this can be attributed to no other cause than her prudence, which will appear to be greater, as we look nearer;for the effects that proceed from fortune, if there be any such thing, are like their cause, inconstant. But there never happened to any other commonwealth so undisturbed and constant a tranquillity and peace in herself as are in that of Venice;wherefore this must proceed from some other cause than chance.
And we see that as she is of all others the most quiet, so the most equal commonwealth. Her body consists of one order, and her Senate is like a rolling stone, as was said, which never did, nor, while it continues upon that rotation, never shall gather the moss of a divided or ambitious interest, much less such a one as that which grasped the people of Rome in the talons of their own eagles. And if Machiavel, averse from doing this commonwealth right, had considered her orders, as his reader shall easily perceive he never did, he must have been so far from attributing the prudence of them to chance, that he would have touched up his admirable work to that perfection which, as to the civil part, has no pattern in the universal world but this of Venice.