Desiring, therefore, to discuss the nature of the government of Rome, and to ascertain the accidental circumstances which brought it to its perfection, I say, as has been said before by many who have written of Governments, that of these there are three forms, known by the names Monarchy, Aristocracy, and Democracy, and that those who give its institutions to a State have recourse to one or other of these three, according as it suits their purpose. Other, and, as many have thought, wiser teachers, will have it, that there are altogether six forms of government, three of them utterly bad, the other three good in themselves, but so readily corrupted that they too are apt to become hurtful. The good are the three above named; the bad, three others dependent upon these, and each so like that to which it is related, that it is easy to pass imperceptibly from the one to the other. For a Monarchy readily becomes a Tyranny, an Aristocracy an Oligarchy, while a Democracy tends to degenerate into Anarchy. So that if the founder of a State should establish any one of these three forms of Government, he establishes it for a short time only, since no precaution he may take can prevent it from sliding into its contrary, by reason of the close resemblance which, in this case, the virtue bears to the vice. These diversities in the form of Government spring up among men by chance. For in the beginning of the world, its inhabitants, being few in number, for a time lived scattered after the fashion of beasts; but afterwards, as they increased and multiplied, gathered themselves into societies, and, the better to protect themselves, began to seek who among them was the strongest and of the highest courage, to whom, making him their head, they tendered obedience. Next arose the knowledge of such things as are honourable and good, as opposed to those which are bad and shameful. For observing that when a man wronged his benefactor, hatred was universally felt for the one and sympathy for the other, and that the ungrateful were blamed, while those who showed gratitude were honoured, and reflecting that the wrongs they saw done to others might be done to themselves, to escape these they resorted to making laws and fixing punishments against any who should transgress them; and in this way grew the recognition of Justice. Whence it came that afterwards, in choosing their rulers, men no longer looked about for the strongest, but for him who was the most prudent and the most just.