Just has a different form from the aforementioned; for that which is concerned in distribution of common property is always according to the aforementioned proportion: I mean that, if the division is made out of common property, the shares will bear the same proportion to one another as the original contributions did: and the Unjust which is opposite to this Just is that which violates the proportionate.
But the Just which arises in transactions between men is an equal in a certain sense, and the Unjust an unequal, only 1132anot in the way of that proportion but of arithmetical. Because it makes no difference whether a robbery, for instance, is committed by a good man on a bad or by a bad man on a good, nor whether a good or a bad man has committed adultery: the law looks only to the difference created by the injury and treats the men as previously equal, where the one does and the other suffers injury, or the one has done and the other suffered harm.[1] And so this Unjust, being unequal, the judge endeavours to reduce to equality again, because really when the one party has been wounded and the other has struck him, or the one kills and the other dies, the suffering and the doing are divided into unequal shares; well, the judge tries to restore equality by penalty, thereby taking from the gain.
For these terms gain and loss are applied to these cases, though perhaps the term in some particular instance may not be strictly proper, as gain, for instance, to the man who has given a blow, and loss to him who has received it: still, when the suffering has been estimated, the one is called loss and the other gain.
And so the equal is a mean between the more and the less, which represent gain and loss in contrary ways (I mean, that the more of good and the less of evil is gain, the less of good and the more of evil is loss): between which the equal was stated to be a mean, which equal we say is Just: and so the Corrective Just must be the mean between loss and gain. And this is the reason why, upon a dispute arising, men have
