There will be choruses of boys, girls, and grown-up persons, and all will be heard repeating the same strain, that 'virtue is happiness.' One of them will give the law to the rest; this will be the chorus of aged minstrels, who will sing the most beautiful and the most useful of songs.

They will require a little wine, to mellow the austerity of age, and make them amenable to the laws.
After having laid down as the first principle of politics, that peace, and not war, is the true aim of the legislator, and briefly discussed music and festive intercourse, at the commencement of the third book Plato makes a digression, in which he speaks of the origin of society.
He describes, first of all, the family; secondly, the patriarchal stage, which is an aggregation of families; thirdly, the founding of regular cities, like Ilium; fourthly, the establishment of a military and political system, like that of Sparta, with which he identifies Argos and Messene, dating from the return of the Heraclidae.

But the aims of states should be good, or else, like the prayer of Theseus, they may be ruinous to themselves.

This was the case in two out of three of the Heracleid kingdoms.

They did not understand that the powers in a state should be balanced.