Love seems to be implanted by nature in the parent towards the offspring, and in the offspring towards the parent, not only among men, but also among birds and most animals: and in those of the same race towards one another, among men especially—for which reason we commend those who love their fellow-men. And when one travels one may see how man is always akin to and dear to man.
Again, it seems that friendship is the bond that holds states together, and that lawgivers are even more eager to secure it than justice. For concord bears a certain resemblance to friendship, and it is concord that they especially wish to retain, and dissension that they especially wish to banish as an enemy. If citizens be friends, they have no need of justice, but though they be just, they need friendship or love also; indeed, the completest realization of justice 212 seems to be the realization of friendship or love also.