128
Aristotle's Ethics
Book V.
Next, a man cannot deal Unjustly by himself in the sense in which a man is Unjust who only does Unjust acts without being entirely bad (for the two things are different, because the Unjust man is in a way bad, as the coward is, not as though he were chargeable with badness in the full extent of the term, and so he does not act Unjustly in this sense), because if it were so then it would be possible for the same thing to have been taken away from and added to the same person:[1] but this is really not possible, the Just and the Unjust always implying a plurality of persons.
Again, an Unjust action must be voluntary, done of deliberate purpose, and aggressive (for the man who hurts because he has first suffered and is merely requiting the same is not thought to act Unjustly), but here the man does to himself and suffers the same things at the same time.
Again, it would imply the possibility of being Unjustly dealt with with one's own consent.
And, besides all this, a man cannot act Unjustly without his act falling under some particular crime; now a man cannot seduce his own wife, commit a burglary on his own premises, or steal his own property.