The Fraternal Friendship is like that of Companions, because brothers are equal and much of an age, and such persons have generally like feelings and like dispositions. Like to this also is the Friendship of a Timocracy, because the citizens are intended to be equal and equitable: rule, therefore, passes from hand to hand, and is distributed on equal terms: so too is the Friendship accordingly.
In the deflections from the constitutional forms, just as the principle of Justice is but small so is the Friendship also: and least of all in the most perverted form: in Despotism there is little or no Friendship. For generally wherever the ruler and the ruled have nothing in common there is no Friendship because there is no Justice; but the case is as between an artisan and his tool, or between soul and body, and master and slave; all these are benefited by those who use them, but towards things inanimate there is neither Friendship nor Justice: nor even towards a horse or an ox, or a slave quâ slave, because there is nothing in common: a slave as such is an animate tool, a tool an inanimate slave. Quâ slave, then, there is no Friendship towards him, only quâ man: for it is thought that there is some principle of Justice between every man, and every other who can share in law and be a party to an agreement; and so somewhat of Friendship, in so far as he is man. So in Despotisms the Friendships and the principle of Justice are inconsiderable in extent, but in Democracies they are most considerable because they who are equal have much in common.
Chapter XII.
Now of course all Friendship is based upon Communion, as has been already stated: but one would be inclined to separate off from the rest the Friendship of Kindred, and that of Companions: whereas those of men of the same city, or tribe, or crew, and all such, are more peculiarly, it would seem, based upon Communion, inasmuch as they plainly exist in right of some agreement expressed or implied: among these one may rank also the Friendship of Hospitality,