A king desires to be the guardian of his people, that those who have property may be secure in the possession of it, and that the people in general meet with no injury; but a tyrant, as has been often said, has no regard to the common good, except for his own advantage; his only object is pleasure, but a king's is virtue: what a tyrant therefore is ambitious of engrossing is wealth, but a king rather honour. The guards too of a king are citizens, a tyrant's foreigners. That a tyranny contains all that is bad both in a democracy and an oligarchy is evident; with an oligarchy it has for its end gain, as the only means of providing the tyrant with guards and the luxuries of life; like that it places no confidence in the people; and therefore deprives them of the use of arms: it is also common to them both to persecute the populace, to drive them out of the city and their own habitations. With a democracy it quarrels with the nobles, and destroys them both publicly and privately, or drives them into banishment, as rivals and an impediment to the government; hence naturally arise conspiracies both amongst those who desire to govern and those who desire not to be slaves; hence arose Periander's advice to Thrasybulus to take off the tallest stalks, hinting thereby, that it was necessary to make away with the eminent citizens. We ought then in reason, as has been already said, to account for the changes which arise in a monarchy from the same causes which produce them in other states: for, through injustice received, fear, and contempt, many of those who are under a monarchical government conspire against it; but of all species of injustice, injurious contempt has most influence on them for that purpose: sometimes it is owing to their being deprived of their private fortunes. The dissolution too of a kingdom and a tyranny are generally the same; for monarchs abound in wealth and honour, which all are desirous to obtain. Of plots: some aim at the life of those who govern, others at their government; the first arises from hatred to their persons; which hatred may be owing to many causes, either of which will be sufficient to excite their anger, and the generality of those who are under the influence of that passion will join in a conspiracy, not for the sake of their own advancement, but for revenge. Thus the plot against the children of Pisistratus arose from their injurious treatment of Harmodius's sister, and insulting him also; for Harmodius resenting the injury done to his sister, and Aristogiton the injury done to Harmodius. Periander the tyrant of Ambracia also lost his life by a conspiracy, for some improper liberties he took with a boy in his cups: and Philip was slain by Pausanias for neglecting to revenge him of the affront he had received from Attains; as was Amintas the Little by Darda, for insulting him on account of his age; and the eunuch by Evagoras the Cyprian in revenge for having taken his son's wife away from him....