Book 8
3
Injustice therefore also is differently constituted in each of these relationships: wrong is increasingly serious in proportion as it is done to a nearer friend. For example, it is more shocking to defraud a comrade of money than a fellow-citizen; or to refuse aid to a brother than to do so to a stranger; or to strike one’s father than to strike anybody else. Similarly it is natural that the claims of justice also should increase with the nearness of the friendship, since friendship and justice exist between the same persons and are co-extensive in range.
4
But all associations are parts as it were of the association of the State. Travellers for instance associate together for some advantage, namely to procure some of their necessary supplies. But the political association too, it is believed, was originally formed, and continues to be maintained, for the advantage of its members: the aim of lawgivers is the good of the community, and justice is sometimes defined as that which is to the common advantage.
