Nicomachean Ethics

Now that there is more than one kind of Justice, and that there is one which is distinct from and besides that which is co-extensive with, Virtue, is plain: we must next ascertain what it is, and what are its characteristics.

Well, the Unjust has been divided into the unlawful and the unequal, and the Just accordingly into the lawful and the equal: the aforementioned Injustice is in the way of the unlawful. And as the unequal and the more[7] are not the same, but differing as part to whole (because all more is unequal, but not all unequal more), so the Unjust and the Injustice we are now in search of are not the same with, but other than, those before mentioned, the one being the parts, the other the wholes; for this particular Injustice is a part of the Injustice co-extensive with Vice, and likewise this Justice of the Justice co-extensive with Virtue. So that what we have now to speak of is the particular Justice and Injustice, and likewise the particular Just and Unjust.

Here then let us dismiss any further consideration of the Justice ranking as co-extensive with Virtue (being the practice of Virtue in all its bearings towards others), and of the co-relative Injustice (being similarly the practice of Vice). It is clear too, that we must separate off the Just and the Unjust involved in these: because one may pretty well say that most lawful things are those which naturally result in action from Virtue in its fullest sense, because the law enjoins the living in accordance with each Virtue and forbids living in accordance with each Vice. And the producing causes of Virtue in all its bearings are those enactments which have been made respecting education for society.

By the way, as to individual education, in respect of which a man is simply good without reference to others, whether it is the province of πολιτικὴ or some other science we must determine at a future time: for it may be it is not the same thing to be a good man and a good citizen in every case.[8]