Aristotle

Both oligarch and tyrant mistrust the people, and therefore deprive them of their arms.

If every instrument could accomplish its own work, obeying or anticipating the will of others, like the statues of Daedalus, or the tripods of Hephaestus, which, says the poet, ‘of their own accord entered the assembly of the Gods’; if, in like manner, the shuttle would weave and the plectrum touch the lyre without a hand to guide them, chief workmen would not want servants, nor masters slaves.

That judges of important causes should hold office for life is a disputable thing, for the mind grows old as well as the body.

Even when laws have been written down, they ought not always to remain unaltered.

I mean, for example, that it is thought to be democratic for the offices to be assigned by lot, for them to be elected oligarchic, and democratic for them not to have a property-qualification, oligarchic to have one;

The good citizen need not of necessity possess the virtue which makes a good man.

Further, the state is by nature clearly prior to the family and to the individual, since the whole is of necessity prior to the part; for example, if the whole body be destroyed, there will be no foot or hand, except in an equivocal sense, as we might speak of a stone hand; for when destroyed the hand will be no better than that. But things are defined by their working and power; and we ought not to say that they are the same when they no longer have their proper quality, but only that they have the same name.

They should rule who are able to rule best.

Men ... are easily induced to believe that in some wonderful manner everybody will become everybody's friend, especially when some one is heard denouncing the evils now existing in states, suits about contracts, convictions for perjury, flatteries of rich men and the like, which are said to arise out of the possession of private property. These evils, however, are due to a very different cause — the wickedness of human nature.

Even trifles are most important when they concern the rulers, as was the case of old at Syracuse; for the Syracusan constitution was once changed by a love-quarrel of two young men, who were in the government. The story is that while one of them was away from home his beloved was gained over by his companion, and he to revenge himself seduced the other's wife. They then drew the members of the ruling class into their quarrel and so split all the people into portions. We learn from this story that we should be on our guard against the beginnings of such evils, and should put an end to the quarrels of chiefs and mighty men. The mistake lies in the beginning — as the proverb says — 'Well begun is half done'; so an error at the beginning, though quite small, bears the same ratio to the errors in the other parts.

A state is not a mere society, having a common place, established for the prevention of mutual crime and for the sake of exchange.... Political society exists for the sake of noble actions, and not of mere companionship.

Man is by nature a political animal.