Nicomachean Ethics
By Aristotle
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Nicomachean Ethics
By Aristotle
Written 350 B.C.E
Translated by W. D. Ross
 
1
With regards to justice and injustice we must (1) consider what 
kind of actions they are concerned with, (2) what sort of mean justice 
is, and (3) between what extremes the just act is intermediate. Our investigation 
shall follow the same course as the preceding discussions.
We see that all men mean by justice that kind of state of character 
which makes people disposed to do what is just and makes them act justly 
and wish for what is just; and similarly by injustice that state which 
makes them act unjustly and wish for what is unjust. Let us too, then, 
lay this down as a general basis. For the same is not true of the sciences 
and the faculties as of states of character. A faculty or a science which 
is one and the same is held to relate to contrary objects, but a state 
of character which is one of two contraries does not produce the contrary 
results; e.g. as a result of health we do not do what is the opposite of 
healthy, but only what is healthy; for we say a man walks healthily, when 
he walks as a healthy man would.
Now often one contrary state is recognized from its contrary, and 
often states are recognized from the subjects that exhibit them; for (A) 
if good condition is known, bad condition also becomes known, and (B) good 
condition is known from the things that are in good condition, and they 
from it. If good condition is firmness of flesh, it is necessary both that 
bad condition should be flabbiness of flesh and that the wholesome should 
be that which causes firmness in flesh. And it follows for the most part 
that if one contrary is ambiguous the other also will be ambiguous; e.g. 
if 'just' is so, that 'unjust' will be so too.
Now 'justice' and 'injustice' seem to be ambiguous, but because 
their different meanings approach near to one another the ambiguity escapes 
notice and is not obvious as it is, comparatively, when the meanings are 
far apart, e.g. (for here the difference in outward form is great) as the 
ambiguity in the use of kleis for the collar-bone of an animal and for 
that with which we lock a door. Let us take as a starting-point, then, 
the various meanings of 'an unjust man'. Both the lawless man and the grasping 
and unfair man are thought to be unjust, so that evidently both the law-abiding 
and the fair man will be just. The just, then, is the lawful and the fair, 
the unjust the unlawful and the unfair.
Since the unjust man is grasping, he must be concerned with goods-not 
all goods, but those with which prosperity and adversity have to do, which 
taken absolutely are always good, but for a particular person are not always 
good. Now men pray for and pursue these things; but they should not, but 
should pray that the things that are good absolutely may also be good for 
them, and should choose the things that are good for them. The unjust man 
does not always choose the greater, but also the less-in the case of things 
bad absolutely; but because the lesser evil is itself thought to be in 
a sense good, and graspingness is directed at the good, therefore he is 
thought to be grasping. And he is unfair; for this contains and is common 
to both.
Since the lawless man was seen to be unjust and the law-abiding 
man just, evidently all lawful acts are in a sense just acts; for the acts 
laid down by the legislative art are lawful, and each of these, we say, 
is just. Now the laws in their enactments on all subjects aim at the common 
advantage either of all or of the best or of those who hold power, or something 
of the sort; so that in one sense we call those acts just that tend to 
produce and preserve happiness and its components for the political society. 
And the law bids us do both the acts of a brave man (e.g. not to desert 
our post nor take to flight nor throw away our arms), and those of a temperate 
man (e.g. not to commit adultery nor to gratify one's lust), and those 
of a good-tempered man (e.g. not to strike another nor to speak evil), 
and similarly with regard to the other virtues and forms of wickedness, 
commanding some acts and forbidding others; and the rightly-framed law 
does this rightly, and the hastily conceived one less well. This form of 
justice, then, is complete virtue, but not absolutely, but in relation 
to our neighbour. And therefore justice is often thought to be the greatest 
of virtues, and 'neither evening nor morning star' is so wonderful; and 
proverbially 'in justice is every virtue comprehended'. And it is complete 
virtue in its fullest sense, because it is the actual exercise of complete 
virtue. It is complete because he who possesses it can exercise his virtue 
not only in himself but towards his neighbour also; for many men can exercise 
virtue in their own affairs, but not in their relations to their neighbour. 
This is why the saying of Bias is thought to be true, that 'rule will show 
the man'; for a ruler is necessarily in relation to other men and a member 
of a society. For this same reason justice, alone of the virtues, is thought 
to be 'another's good', because it is related to our neighbour; for it 
does what is advantageous to another, either a ruler or a copartner. Now 
the worst man is he who exercises his wickedness both towards himself and 
towards his friends, and the best man is not he who exercises his virtue 
towards himself but he who exercises it towards another; for this is a 
difficult task. Justice in this sense, then, is not part of virtue but 
virtue entire, nor is the contrary injustice a part of vice but vice entire. 
What the difference is between virtue and justice in this sense is plain 
from what we have said; they are the same but their essence is not the 
same; what, as a relation to one's neighbour, is justice is, as a certain 
kind of state without qualification, virtue.
2
But at all events what we are investigating is the justice which 
is a part of virtue; for there is a justice of this kind, as we maintain. 
Similarly it is with injustice in the particular sense that we are 
concerned.
That there is such a thing is indicated by the fact that while 
the man who exhibits in action the other forms of wickedness acts wrongly 
indeed, but not graspingly (e.g. the man who throws away his shield through 
cowardice or speaks harshly through bad temper or fails to help a friend 
with money through meanness), when a man acts graspingly he often exhibits 
none of these vices,-no, nor all together, but certainly wickedness of 
some kind (for we blame him) and injustice. There is, then, another kind 
of injustice which is a part of injustice in the wide sense, and a use 
of the word 'unjust' which answers to a part of what is unjust in the wide 
sense of 'contrary to the law'. Again if one man commits adultery for the 
sake of gain and makes money by it, while another does so at the bidding 
of appetite though he loses money and is penalized for it, the latter would 
be held to be self-indulgent rather than grasping, but the former is unjust, 
but not self-indulgent; evidently, therefore, he is unjust by reason of 
his making gain by his act. Again, all other unjust acts are ascribed invariably 
to some particular kind of wickedness, e.g. adultery to self-indulgence, 
the desertion of a comrade in battle to cowardice, physical violence to 
anger; but if a man makes gain, his action is ascribed to no form of wickedness 
but injustice. Evidently, therefore, there is apart from injustice in the 
wide sense another, 'particular', injustice which shares the name and nature 
of the first, because its definition falls within the same genus; for the 
significance of both consists in a relation to one's neighbour, but the 
one is concerned with honour or money or safety-or that which includes 
all these, if we had a single name for it-and its motive is the pleasure 
that arises from gain; while the other is concerned with all the objects 
with which the good man is concerned.
It is clear, then, that there is more than one kind of justice, 
and that there is one which is distinct from virtue entire; we must try 
to grasp its genus and differentia.
The unjust has been divided into the unlawful and the unfair, and 
the just into the lawful and the fair. To the unlawful answers the afore-mentioned 
sense of injustice. But since unfair and the unlawful are not the same, 
but are different as a part is from its whole (for all that is unfair is 
unlawful, but not all that is unlawful is unfair), the unjust and injustice 
in the sense of the unfair are not the same as but different from the former 
kind, as part from whole; for injustice in this sense is a part of injustice 
in the wide sense, and similarly justice in the one sense of justice in 
the other. Therefore we must speak also about particular justice and particular 
and similarly about the just and the unjust. The justice, then, which answers 
to the whole of virtue, and the corresponding injustice, one being the 
exercise of virtue as a whole, and the other that of vice as a whole, towards 
one's neighbour, we may leave on one side. And how the meanings of 'just' 
and 'unjust' which answer to these are to be distinguished is evident; 
for practically the majority of the acts commanded by the law are those 
which are prescribed from the point of view of virtue taken as a whole; 
for the law bids us practise every virtue and forbids us to practise any 
vice. And the things that tend to produce virtue taken as a whole are those 
of the acts prescribed by the law which have been prescribed with a view 
to education for the common good. But with regard to the education of the 
individual as such, which makes him without qualification a good man, we 
must determine later whether this is the function of the political art 
or of another; for perhaps it is not the same to be a good man and a good 
citizen of any state taken at random.
Of particular justice and that which is just in the corresponding 
sense, (A) one kind is that which is manifested in distributions of honour 
or money or the other things that fall to be divided among those who have 
a share in the constitution (for in these it is possible for one man to 
have a share either unequal or equal to that of another), and (B) one is 
that which plays a rectifying part in transactions between man and man. 
Of this there are two divisions; of transactions (1) some are voluntary 
and (2) others involuntary- voluntary such transactions as sale, purchase, 
loan for consumption, pledging, loan for use, depositing, letting (they 
are called voluntary because the origin of these transactions is voluntary), 
while of the involuntary (a) some are clandestine, such as theft, adultery, 
poisoning, procuring, enticement of slaves, assassination, false witness, 
and (b) others are violent, such as assault, imprisonment, murder, robbery 
with violence, mutilation, abuse, insult.
3
(A) We have shown that both the unjust man and the unjust act are 
unfair or unequal; now it is clear that there is also an intermediate between 
the two unequals involved in either case. And this is the equal; for in 
any kind of action in which there's a more and a less there is also what 
is equal. If, then, the unjust is unequal, just is equal, as all men suppose 
it to be, even apart from argument. And since the equal is intermediate, 
the just will be an intermediate. Now equality implies at least two things. 
The just, then, must be both intermediate and equal and relative (i.e. 
for certain persons). And since the equall intermediate it must be between 
certain things (which are respectively greater and less); equal, it involves 
two things; qua just, it is for certain people. The just, therefore, involves 
at least four terms; for the persons for whom it is in fact just are two, 
and the things in which it is manifested, the objects distributed, are 
two. And the same equality will exist between the persons and between the 
things concerned; for as the latter the things concerned-are related, so 
are the former; if they are not equal, they will not have what is equal, 
but this is the origin of quarrels and complaints-when either equals have 
and are awarded unequal shares, or unequals equal shares. Further, this 
is plain from the fact that awards should be 'according to merit'; for 
all men agree that what is just in distribution must be according to merit 
in some sense, though they do not all specify the same sort of merit, but 
democrats identify it with the status of freeman, supporters of oligarchy 
with wealth (or with noble birth), and supporters of aristocracy with 
excellence.
The just, then, is a species of the proportionate (proportion being 
not a property only of the kind of number which consists of abstract units, 
but of number in general). For proportion is equality of ratios, and involves 
four terms at least (that discrete proportion involves four terms is plain, 
but so does continuous proportion, for it uses one term as two and mentions 
it twice; e.g. 'as the line A is to the line B, so is the line B to the 
line C'; the line B, then, has been mentioned twice, so that if the line 
B be assumed twice, the proportional terms will be four); and the just, 
too, involves at least four terms, and the ratio between one pair is the 
same as that between the other pair; for there is a similar distinction 
between the persons and between the things. As the term A, then, is to 
B, so will C be to D, and therefore, alternando, as A is to C, B will be 
to D. Therefore also the whole is in the same ratio to the whole; and this 
coupling the distribution effects, and, if the terms are so combined, effects 
justly. The conjunction, then, of the term A with C and of B with D is 
what is just in distribution, and this species of the just is intermediate, 
and the unjust is what violates the proportion; for the proportional is 
intermediate, and the just is proportional. (Mathematicians call this kind 
of proportion geometrical; for it is in geometrical proportion that it 
follows that the whole is to the whole as either part is to the corresponding 
part.) This proportion is not continuous; for we cannot get a single term 
standing for a person and a thing.
This, then, is what the just is-the proportional; the unjust is 
what violates the proportion. Hence one term becomes too great, the other 
too small, as indeed happens in practice; for the man who acts unjustly 
has too much, and the man who is unjustly treated too little, of what is 
good. In the case of evil the reverse is true; for the lesser evil is reckoned 
a good in comparison with the greater evil, since the lesser evil is rather 
to be chosen than the greater, and what is worthy of choice is good, and 
what is worthier of choice a greater good.
This, then, is one species of the just.
4
(B) The remaining one is the rectificatory, which arises in connexion 
with transactions both voluntary and involuntary. This form of the just 
has a different specific character from the former. For the justice which 
distributes common possessions is always in accordance with the kind of 
proportion mentioned above (for in the case also in which the distribution 
is made from the common funds of a partnership it will be according to 
the same ratio which the funds put into the business by the partners bear 
to one another); and the injustice opposed to this kind of justice is that 
which violates the proportion. But the justice in transactions between 
man and man is a sort of equality indeed, and the injustice a sort of inequality; 
not according to that kind of proportion, however, but according to arithmetical 
proportion. For it makes no difference whether a good man has defrauded 
a bad man or a bad man a good one, nor whether it is a good or a bad man 
that has committed adultery; the law looks only to the distinctive character 
of the injury, and treats the parties as equal, if one is in the wrong 
and the other is being wronged, and if one inflicted injury and the other 
has received it. Therefore, this kind of injustice being an inequality, 
the judge tries to equalize it; for in the case also in which one has received 
and the other has inflicted a wound, or one has slain and the other been 
slain, the suffering and the action have been unequally distributed; but 
the judge tries to equalize by means of the penalty, taking away from the 
gain of the assailant. For the term 'gain' is applied generally to such 
cases, even if it be not a term appropriate to certain cases, e.g. to the 
person who inflicts a woundand 'loss' to the sufferer; at all events when 
the suffering has been estimated, the one is called loss and the other 
gain. Therefore the equal is intermediate between the greater and the less, 
but the gain and the loss are respectively greater and less in contrary 
ways; more of the good and less of the evil are gain, and the contrary 
is loss; intermediate between them is, as we saw, equal, which we say is 
just; therefore corrective justice will be the intermediate between loss 
and gain. This is why, when people dispute, they take refuge in the judge; 
and to go to the judge is to go to justice; for the nature of the judge 
is to be a sort of animate justice; and they seek the judge as an intermediate, 
and in some states they call judges mediators, on the assumption that if 
they get what is intermediate they will get what is just. The just, then, 
is an intermediate, since the judge is so. Now the judge restores equality; 
it is as though there were a line divided into unequal parts, and he took 
away that by which the greater segment exceeds the half, and added it to 
the smaller segment. And when the whole has been equally divided, then 
they say they have 'their own'-i.e. when they have got what is equal. The 
equal is intermediate between the greater and the lesser line according 
to arithmetical proportion. It is for this reason also that it is called 
just (sikaion), because it is a division into two equal parts (sicha), 
just as if one were to call it sichaion; and the judge (sikastes) is one 
who bisects (sichastes). For when something is subtracted from one of two 
equals and added to the other, the other is in excess by these two; since 
if what was taken from the one had not been added to the other, the latter 
would have been in excess by one only. It therefore exceeds the intermediate 
by one, and the intermediate exceeds by one that from which something was 
taken. By this, then, we shall recognize both what we must subtract from 
that which has more, and what we must add to that which has less; we must 
add to the latter that by which the intermediate exceeds it, and subtract 
from the greatest that by which it exceeds the intermediate. Let the lines 
AA', BB', CC' be equal to one another; from the line AA' let the segment 
AE have been subtracted, and to the line CC' let the segment Cd have been 
added, so that the whole line DCC' exceeds the line EA' by the segment 
CD and the segment CF; therefore it exceeds the line Bb' by the segment 
CD. (See diagram.)
These names, both loss and gain, have come from voluntary exchange; 
for to have more than one's own is called gaining, and to have less than 
one's original share is called losing, e.g. in buying and selling and in 
all other matters in which the law has left people free to make their own 
terms; but when they get neither more nor less but just what belongs to 
themselves, they say that they have their own and that they neither lose 
nor gain.
Therefore the just is intermediate between a sort of gain and a 
sort of loss, viz. those which are involuntary; it consists in having an 
equal amount before and after the transaction.
5
Some think that reciprocity is without qualification just, as the 
Pythagoreans said; for they defined justice without qualification as reciprocity. 
Now 'reciprocity' fits neither distributive nor rectificatory justice-yet 
people want even the justice of Rhadamanthus to mean 
this:
Should a man suffer what he did, right justice would be done -for 
in many cases reciprocity and rectificatory justice are not in accord; 
e.g. (1) if an official has inflicted a wound, he should not be wounded 
in return, and if some one has wounded an official, he ought not to be 
wounded only but punished in addition. Further (2) there is a great difference 
between a voluntary and an involuntary act. But in associations for exchange 
this sort of justice does hold men together-reciprocity in accordance with 
a proportion and not on the basis of precisely equal return. For it is 
by proportionate requital that the city holds together. Men seek to return 
either evil for evil-and if they cana not do so, think their position mere 
slavery-or good for good-and if they cannot do so there is no exchange, 
but it is by exchange that they hold together. This is why they give a 
prominent place to the temple of the Graces-to promote the requital of 
services; for this is characteristic of grace-we should serve in return 
one who has shown grace to us, and should another time take the initiative 
in showing it.
Now proportionate return is secured by cross-conjunction. Let A 
be a builder, B a shoemaker, C a house, D a shoe. The builder, then, must 
get from the shoemaker the latter's work, and must himself give him in 
return his own. If, then, first there is proportionate equality of goods, 
and then reciprocal action takes place, the result we mention will be effected. 
If not, the bargain is not equal, and does not hold; for there is nothing 
to prevent the work of the one being better than that of the other; they 
must therefore be equated. (And this is true of the other arts also; for 
they would have been destroyed if what the patient suffered had not been 
just what the agent did, and of the same amount and kind.) For it is not 
two doctors that associate for exchange, but a doctor and a farmer, or 
in general people who are different and unequal; but these must be equated. 
This is why all things that are exchanged must be somehow comparable. It 
is for this end that money has been introduced, and it becomes in a sense 
an intermediate; for it measures all things, and therefore the excess and 
the defect-how many shoes are equal to a house or to a given amount of 
food. The number of shoes exchanged for a house (or for a given amount 
of food) must therefore correspond to the ratio of builder to shoemaker. 
For if this be not so, there will be no exchange and no intercourse. And 
this proportion will not be effected unless the goods are somehow equal. 
All goods must therefore be measured by some one thing, as we said before. 
Now this unit is in truth demand, which holds all things together (for 
if men did not need one another's goods at all, or did not need them equally, 
there would be either no exchange or not the same exchange); but money 
has become by convention a sort of representative of demand; and this is 
why it has the name 'money' (nomisma)-because it exists not by nature but 
by law (nomos) and it is in our power to change it and make it useless. 
There will, then, be reciprocity when the terms have been equated so that 
as farmer is to shoemaker, the amount of the shoemaker's work is to that 
of the farmer's work for which it exchanges. But we must not bring them 
into a figure of proportion when they have already exchanged (otherwise 
one extreme will have both excesses), but when they still have their own 
goods. Thus they are equals and associates just because this equality can 
be effected in their case. Let A be a farmer, C food, B a shoemaker, D 
his product equated to C. If it had not been possible for reciprocity to 
be thus effected, there would have been no association of the parties. 
That demand holds things together as a single unit is shown by the fact 
that when men do not need one another, i.e. when neither needs the other 
or one does not need the other, they do not exchange, as we do when some 
one wants what one has oneself, e.g. when people permit the exportation 
of corn in exchange for wine. This equation therefore must be established. 
And for the future exchange-that if we do not need a thing now we shall 
have it if ever we do need it-money is as it were our surety; for it must 
be possible for us to get what we want by bringing the money. Now the same 
thing happens to money itself as to goods-it is not always worth the same; 
yet it tends to be steadier. This is why all goods must have a price set 
on them; for then there will always be exchange, and if so, association 
of man with man. Money, then, acting as a measure, makes goods commensurate 
and equates them; for neither would there have been association if there 
were not exchange, nor exchange if there were not equality, nor equality 
if there were not commensurability. Now in truth it is impossible that 
things differing so much should become commensurate, but with reference 
to demand they may become so sufficiently. There must, then, be a unit, 
and that fixed by agreement (for which reason it is called money); for 
it is this that makes all things commensurate, since all things are measured 
by money. Let A be a house, B ten minae, C a bed. A is half of B, if the 
house is worth five minae or equal to them; the bed, C, is a tenth of B; 
it is plain, then, how many beds are equal to a house, viz. five. That 
exchange took place thus before there was money is plain; for it makes 
no difference whether it is five beds that exchange for a house, or the 
money value of five beds.
We have now defined the unjust and the just. These having been 
marked off from each other, it is plain that just action is intermediate 
between acting unjustly and being unjustly treated; for the one is to have 
too much and the other to have too little. Justice is a kind of mean, but 
not in the same way as the other virtues, but because it relates to an 
intermediate amount, while injustice relates to the extremes. And justice 
is that in virtue of which the just man is said to be a doer, by choice, 
of that which is just, and one who will distribute either between himself 
and another or between two others not so as to give more of what is desirable 
to himself and less to his neighbour (and conversely with what is harmful), 
but so as to give what is equal in accordance with proportion; and similarly 
in distributing between two other persons. Injustice on the other hand 
is similarly related to the unjust, which is excess and defect, contrary 
to proportion, of the useful or hurtful. For which reason injustice is 
excess and defect, viz. because it is productive of excess and defect-in 
one's own case excess of what is in its own nature useful and defect of 
what is hurtful, while in the case of others it is as a whole like what 
it is in one's own case, but proportion may be violated in either direction. 
In the unjust act to have too little is to be unjustly treated; to have 
too much is to act unjustly.
Let this be taken as our account of the nature of justice and injustice, 
and similarly of the just and the unjust in general.
6
Since acting unjustly does not necessarily imply being unjust, 
we must ask what sort of unjust acts imply that the doer is unjust with 
respect to each type of injustice, e.g. a thief, an adulterer, or a brigand. 
Surely the answer does not turn on the difference between these types. 
For a man might even lie with a woman knowing who she was, but the origin 
of his might be not deliberate choice but passion. He acts unjustly, then, 
but is not unjust; e.g. a man is not a thief, yet he stole, nor an adulterer, 
yet he committed adultery; and similarly in all other 
cases.
Now we have previously stated how the reciprocal is related to 
the just; but we must not forget that what we are looking for is not only 
what is just without qualification but also political justice. This is 
found among men who share their life with a view to selfsufficiency, men 
who are free and either proportionately or arithmetically equal, so that 
between those who do not fulfil this condition there is no political justice 
but justice in a special sense and by analogy. For justice exists only 
between men whose mutual relations are governed by law; and law exists 
for men between whom there is injustice; for legal justice is the discrimination 
of the just and the unjust. And between men between whom there is injustice 
there is also unjust action (though there is not injustice between all 
between whom there is unjust action), and this is assigning too much to 
oneself of things good in themselves and too little of things evil in themselves. 
This is why we do not allow a man to rule, but rational principle, because 
a man behaves thus in his own interests and becomes a tyrant. The magistrate 
on the other hand is the guardian of justice, and, if of justice, then 
of equality also. And since he is assumed to have no more than his share, 
if he is just (for he does not assign to himself more of what is good in 
itself, unless such a share is proportional to his merits-so that it is 
for others that he labours, and it is for this reason that men, as we stated 
previously, say that justice is 'another's good'), therefore a reward must 
be given him, and this is honour and privilege; but those for whom such 
things are not enough become tyrants.
The justice of a master and that of a father are not the same as 
the justice of citizens, though they are like it; for there can be no injustice 
in the unqualified sense towards thing that are one's own, but a man's 
chattel, and his child until it reaches a certain age and sets up for itself, 
are as it were part of himself, and no one chooses to hurt himself (for 
which reason there can be no injustice towards oneself). Therefore the 
justice or injustice of citizens is not manifested in these relations; 
for it was as we saw according to law, and between people naturally subject 
to law, and these as we saw' are people who have an equal share in ruling 
and being ruled. Hence justice can more truly be manifested towards a wife 
than towards children and chattels, for the former is household justice; 
but even this is different from political justice.
7
Of political justice part is natural, part legal, natural, that 
which everywhere has the same force and does not exist by people's thinking 
this or that; legal, that which is originally indifferent, but when it 
has been laid down is not indifferent, e.g. that a prisoner's ransom shall 
be a mina, or that a goat and not two sheep shall be sacrificed, and again 
all the laws that are passed for particular cases, e.g. that sacrifice 
shall be made in honour of Brasidas, and the provisions of decrees. Now 
some think that all justice is of this sort, because that which is by nature 
is unchangeable and has everywhere the same force (as fire burns both here 
and in Persia), while they see change in the things recognized as just. 
This, however, is not true in this unqualified way, but is true in a sense; 
or rather, with the gods it is perhaps not true at all, while with us there 
is something that is just even by nature, yet all of it is changeable; 
but still some is by nature, some not by nature. It is evident which sort 
of thing, among things capable of being otherwise, is by nature, and which 
is not but is legal and conventional, assuming that both are equally changeable. 
And in all other things the same distinction will apply; by nature the 
right hand is stronger, yet it is possible that all men should come to 
be ambidextrous. The things which are just by virtue of convention and 
expediency are like measures; for wine and corn measures are not everywhere 
equal, but larger in wholesale and smaller in retail markets. Similarly, 
the things which are just not by nature but by human enactment are not 
everywhere the same, since constitutions also are not the same, though 
there is but one which is everywhere by nature the best. Of things just 
and lawful each is related as the universal to its particulars; for the 
things that are done are many, but of them each is one, since it is 
universal.
There is a difference between the act of injustice and what is 
unjust, and between the act of justice and what is just; for a thing is 
unjust by nature or by enactment; and this very thing, when it has been 
done, is an act of injustice, but before it is done is not yet that but 
is unjust. So, too, with an act of justice (though the general term is 
rather 'just action', and 'act of justice' is applied to the correction 
of the act of injustice).
Each of these must later be examined separately with regard to 
the nature and number of its species and the nature of the things with 
which it is concerned.
8
Acts just and unjust being as we have described them, a man acts 
unjustly or justly whenever he does such acts voluntarily; when involuntarily, 
he acts neither unjustly nor justly except in an incidental way; for he 
does things which happen to be just or unjust. Whether an act is or is 
not one of injustice (or of justice) is determined by its voluntariness 
or involuntariness; for when it is voluntary it is blamed, and at the same 
time is then an act of injustice; so that there will be things that are 
unjust but not yet acts of injustice, if voluntariness be not present as 
well. By the voluntary I mean, as has been said before, any of the things 
in a man's own power which he does with knowledge, i.e. not in ignorance 
either of the person acted on or of the instrument used or of the end that 
will be attained (e.g. whom he is striking, with what, and to what end), 
each such act being done not incidentally nor under compulsion (e.g. if 
A takes B's hand and therewith strikes C, B does not act voluntarily; for 
the act was not in his own power). The person struck may be the striker's 
father, and the striker may know that it is a man or one of the persons 
present, but not know that it is his father; a similar distinction may 
be made in the case of the end, and with regard to the whole action. Therefore 
that which is done in ignorance, or though not done in ignorance is not 
in the agent's power, or is done under compulsion, is involuntary (for 
many natural processes, even, we knowingly both perform and experience, 
none of which is either voluntary or involuntary; e.g. growing old or dying). 
But in the case of unjust and just acts alike the injustice or justice 
may be only incidental; for a man might return a deposit unwillingly and 
from fear, and then he must not be said either to do what is just or to 
act justly, except in an incidental way. Similarly the man who under compulsion 
and unwillingly fails to return the deposit must be said to act unjustly, 
and to do what is unjust, only incidentally. Of voluntary acts we do some 
by choice, others not by choice; by choice those which we do after deliberation, 
not by choice those which we do without previous deliberation. Thus there 
are three kinds of injury in transactions between man and man; those done 
in ignorance are mistakes when the person acted on, the act, the instrument, 
or the end that will be attained is other than the agent supposed; the 
agent thought either that he was not hiting any one or that he was not 
hitting with this missile or not hitting this person or to this end, but 
a result followed other than that which he thought likely (e.g. he threw 
not with intent to wound but only to prick), or the person hit or the missile 
was other than he supposed. Now when (1) the injury takes place contrary 
to reasonable expectation, it is a misadventure. When (2) it is not contrary 
to reasonable expectation, but does not imply vice, it is a mistake (for 
a man makes a mistake when the fault originates in him, but is the victim 
of accident when the origin lies outside him). When (3) he acts with knowledge 
but not after deliberation, it is an act of injustice-e.g. the acts due 
to anger or to other passions necessary or natural to man; for when men 
do such harmful and mistaken acts they act unjustly, and the acts are acts 
of injustice, but this does not imply that the doers are unjust or wicked; 
for the injury is not due to vice. But when (4) a man acts from choice, 
he is an unjust man and a vicious man.
Hence acts proceeding from anger are rightly judged not to be done 
of malice aforethought; for it is not the man who acts in anger but he 
who enraged him that starts the mischief. Again, the matter in dispute 
is not whether the thing happened or not, but its justice; for it is apparent 
injustice that occasions rage. For they do not dispute about the occurrence 
of the act-as in commercial transactions where one of the two parties must 
be vicious-unless they do so owing to forgetfulness; but, agreeing about 
the fact, they dispute on which side justice lies (whereas a man who has 
deliberately injured another cannot help knowing that he has done so), 
so that the one thinks he is being treated unjustly and the other 
disagrees.
But if a man harms another by choice, he acts unjustly; and these 
are the acts of injustice which imply that the doer is an unjust man, provided 
that the act violates proportion or equality. Similarly, a man is just 
when he acts justly by choice; but he acts justly if he merely acts 
voluntarily.
Of involuntary acts some are excusable, others not. For the mistakes 
which men make not only in ignorance but also from ignorance are excusable, 
while those which men do not from ignorance but (though they do them in 
ignorance) owing to a passion which is neither natural nor such as man 
is liable to, are not excusable.
9
Assuming that we have sufficiently defined the suffering and doing 
of injustice, it may be asked (1) whether the truth in expressed in Euripides' 
paradoxical words:
I slew my mother, that's my tale in brief.
Were you both willing, or unwilling both?
Is it truly possible to be willingly treated unjustly, or is all 
suffering of injustice the contrary involuntary, as all unjust action is 
voluntary? And is all suffering of injustice of the latter kind or else 
all of the former, or is it sometimes voluntary, sometimes involuntary? 
So, too, with the case of being justly treated; all just action is voluntary, 
so that it is reasonable that there should be a similar opposition in either 
case-that both being unjustly and being justly treated should be either 
alike voluntary or alike involuntary. But it would be thought paradoxical 
even in the case of being justly treated, if it were always voluntary; 
for some are unwillingly treated justly. (2) One might raise this question 
also, whether every one who has suffered what is unjust is being unjustly 
treated, or on the other hand it is with suffering as with acting. In action 
and in passivity alike it is possible to partake of justice incidentally, 
and similarly (it is plain) of injustice; for to do what is unjust is not 
the same as to act unjustly, nor to suffer what is unjust as to be treated 
unjustly, and similarly in the case of acting justly and being justly treated; 
for it is impossible to be unjustly treated if the other does not act unjustly, 
or justly treated unless he acts justly. Now if to act unjustly is simply 
to harm some one voluntarily, and 'voluntarily' means 'knowing the person 
acted on, the instrument, and the manner of one's acting', and the incontinent 
man voluntarily harms himself, not only will he voluntarily be unjustly 
treated but it will be possible to treat oneself unjustly. (This also is 
one of the questions in doubt, whether a man can treat himself unjustly.) 
Again, a man may voluntarily, owing to incontinence, be harmed by another 
who acts voluntarily, so that it would be possible to be voluntarily treated 
unjustly. Or is our definition incorrect; must we to 'harming another, 
with knowledge both of the person acted on, of the instrument, and of the 
manner' add 'contrary to the wish of the person acted on'? Then a man may 
be voluntarily harmed and voluntarily suffer what is unjust, but no one 
is voluntarily treated unjustly; for no one wishes to be unjustly treated, 
not even the incontinent man. He acts contrary to his wish; for no one 
wishes for what he does not think to be good, but the incontinent man does 
do things that he does not think he ought to do. Again, one who gives what 
is his own, as Homer says Glaucus gave Diomede
Armour of gold for brazen, the price of a hundred beeves for nine, 
is not unjustly treated; for though to give is in his power, to be unjustly 
treated is not, but there must be some one to treat him unjustly. It is 
plain, then, that being unjustly treated is not voluntary.
Of the questions we intended to discuss two still remain for discussion; 
(3) whether it is the man who has assigned to another more than his share 
that acts unjustly, or he who has the excessive share, and (4) whether 
it is possible to treat oneself unjustly. The questions are connected; 
for if the former alternative is possible and the distributor acts unjustly 
and not the man who has the excessive share, then if a man assigns more 
to another than to himself, knowingly and voluntarily, he treats himself 
unjustly; which is what modest people seem to do, since the virtuous man 
tends to take less than his share. Or does this statement too need qualification? 
For (a) he perhaps gets more than his share of some other good, e.g. of 
honour or of intrinsic nobility. (b) The question is solved by applying 
the distinction we applied to unjust action; for he suffers nothing contrary 
to his own wish, so that he is not unjustly treated as far as this goes, 
but at most only suffers harm.
It is plain too that the distributor acts unjustly, but not always 
the man who has the excessive share; for it is not he to whom what is unjust 
appertains that acts unjustly, but he to whom it appertains to do the unjust 
act voluntarily, i.e. the person in whom lies the origin of the action, 
and this lies in the distributor, not in the receiver. Again, since the 
word 'do' is ambiguous, and there is a sense in which lifeless things, 
or a hand, or a servant who obeys an order, may be said to slay, he who 
gets an excessive share does not act unjustly, though he 'does' what is 
unjust.
Again, if the distributor gave his judgement in ignorance, he does 
not act unjustly in respect of legal justice, and his judgement is not 
unjust in this sense, but in a sense it is unjust (for legal justice and 
primordial justice are different); but if with knowledge he judged unjustly, 
he is himself aiming at an excessive share either of gratitude or of revenge. 
As much, then, as if he were to share in the plunder, the man who has judged 
unjustly for these reasons has got too much; the fact that what he gets 
is different from what he distributes makes no difference, for even if 
he awards land with a view to sharing in the plunder he gets not land but 
money.
Men think that acting unjustly is in their power, and therefore 
that being just is easy. But it is not; to lie with one's neighbour's wife, 
to wound another, to deliver a bribe, is easy and in our power, but to 
do these things as a result of a certain state of character is neither 
easy nor in our power. Similarly to know what is just and what is unjust 
requires, men think, no great wisdom, because it is not hard to understand 
the matters dealt with by the laws (though these are not the things that 
are just, except incidentally); but how actions must be done and distributions 
effected in order to be just, to know this is a greater achievement than 
knowing what is good for the health; though even there, while it is easy 
to know that honey, wine, hellebore, cautery, and the use of the knife 
are so, to know how, to whom, and when these should be applied with a view 
to producing health, is no less an achievement than that of being a physician. 
Again, for this very reason men think that acting unjustly is characteristic 
of the just man no less than of the unjust, because he would be not less 
but even more capable of doing each of these unjust acts; for he could 
lie with a woman or wound a neighbour; and the brave man could throw away 
his shield and turn to flight in this direction or in that. But to play 
the coward or to act unjustly consists not in doing these things, except 
incidentally, but in doing them as the result of a certain state of character, 
just as to practise medicine and healing consists not in applying or not 
applying the knife, in using or not using medicines, but in doing so in 
a certain way.
Just acts occur between people who participate in things good in 
themselves and can have too much or too little of them; for some beings 
(e.g. presumably the gods) cannot have too much of them, and to others, 
those who are incurably bad, not even the smallest share in them is beneficial 
but all such goods are harmful, while to others they are beneficial up 
to a point; therefore justice is essentially something 
human.
10
Our next subject is equity and the equitable (to epiekes), and their 
respective relations to justice and the just. For on examination they appear 
to be neither absolutely the same nor generically different; and while 
we sometime praise what is equitable and the equitable man (so that we 
apply the name by way of praise even to instances of the other virtues, 
instead of 'good' meaning by epieikestebon that a thing is better), at 
other times, when we reason it out, it seems strange if the equitable, 
being something different from the just, is yet praiseworthy; for either 
the just or the equitable is not good, if they are different; or, if both 
are good, they are the same.
These, then, are pretty much the considerations that give rise 
to the problem about the equitable; they are all in a sense correct and 
not opposed to one another; for the equitable, though it is better than 
one kind of justice, yet is just, and it is not as being a different class 
of thing that it is better than the just. The same thing, then, is just 
and equitable, and while both are good the equitable is superior. What 
creates the problem is that the equitable is just, but not the legally 
just but a correction of legal justice. The reason is that all law is universal 
but about some things it is not possible to make a universal statement 
which shall be correct. In those cases, then, in which it is necessary 
to speak universally, but not possible to do so correctly, the law takes 
the usual case, though it is not ignorant of the possibility of error. 
And it is none the less correct; for the error is in the law nor in the 
legislator but in the nature of the thing, since the matter of practical 
affairs is of this kind from the start. When the law speaks universally, 
then, and a case arises on it which is not covered by the universal statement, 
then it is right, where the legislator fails us and has erred by oversimplicity, 
to correct the omission-to say what the legislator himself would have said 
had he been present, and would have put into his law if he had known. Hence 
the equitable is just, and better than one kind of justice-not better than 
absolute justice but better than the error that arises from the absoluteness 
of the statement. And this is the nature of the equitable, a correction 
of law where it is defective owing to its universality. In fact this is 
the reason why all things are not determined by law, that about some things 
it is impossible to lay down a law, so that a decree is needed. For when 
the thing is indefinite the rule also is indefinite, like the leaden rule 
used in making the Lesbian moulding; the rule adapts itself to the shape 
of the stone and is not rigid, and so too the decree is adapted to the 
facts.
It is plain, then, what the equitable is, and that it is just and 
is better than one kind of justice. It is evident also from this who the 
equitable man is; the man who chooses and does such acts, and is no stickler 
for his rights in a bad sense but tends to take less than his share though 
he has the law oft his side, is equitable, and this state of character 
is equity, which is a sort of justice and not a different state of 
character.
11
Whether a man can treat himself unjustly or not, is evident from 
what has been said. For (a) one class of just acts are those acts in accordance 
with any virtue which are prescribed by the law; e.g. the law does not 
expressly permit suicide, and what it does not expressly permit it forbids. 
Again, when a man in violation of the law harms another (otherwise than 
in retaliation) voluntarily, he acts unjustly, and a voluntary agent is 
one who knows both the person he is affecting by his action and the instrument 
he is using; and he who through anger voluntarily stabs himself does this 
contrary to the right rule of life, and this the law does not allow; therefore 
he is acting unjustly. But towards whom? Surely towards the state, not 
towards himself. For he suffers voluntarily, but no one is voluntarily 
treated unjustly. This is also the reason why the state punishes; a certain 
loss of civil rights attaches to the man who destroys himself, on the ground 
that he is treating the state unjustly.
Further (b) in that sense of 'acting unjustly' in which the man 
who 'acts unjustly' is unjust only and not bad all round, it is not possible 
to treat oneself unjustly (this is different from the former sense; the 
unjust man in one sense of the term is wicked in a particularized way just 
as the coward is, not in the sense of being wicked all round, so that his 
'unjust act' does not manifest wickedness in general). For (i) that would 
imply the possibility of the same thing's having been subtracted from and 
added to the same thing at the same time; but this is impossible-the just 
and the unjust always involve more than one person. Further, (ii) unjust 
action is voluntary and done by choice, and takes the initiative (for the 
man who because he has suffered does the same in return is not thought 
to act unjustly); but if a man harms himself he suffers and does the same 
things at the same time. Further, (iii) if a man could treat himself unjustly, 
he could be voluntarily treated unjustly. Besides, (iv) no one acts unjustly 
without committing particular acts of injustice; but no one can commit 
adultery with his own wife or housebreaking on his own house or theft on 
his own property,
In general, the question 'can a man treat himself unjustly?' is 
solved also by the distinction we applied to the question 'can a man be 
voluntarily treated unjustly?'
(It is evident too that both are bad, being unjustly treated and 
acting unjustly; for the one means having less and the other having more 
than the intermediate amount, which plays the part here that the healthy 
does in the medical art, and that good condition does in the art of bodily 
training. But still acting unjustly is the worse, for it involves vice 
and is blameworthy-involves vice which is either of the complete and unqualified 
kind or almost so (we must admit the latter alternative, because not all 
voluntary unjust action implies injustice as a state of character), while 
being unjustly treated does not involve vice and injustice in oneself. 
In itself, then, being unjustly treated is less bad, but there is nothing 
to prevent its being incidentally a greater evil. But theory cares nothing 
for this; it calls pleurisy a more serious mischief than a stumble; yet 
the latter may become incidentally the more serious, if the fall due to 
it leads to your being taken prisoner or put to death the 
enemy.)
Metaphorically and in virtue of a certain resemblance there is 
a justice, not indeed between a man and himself, but between certain parts 
of him; yet not every kind of justice but that of master and servant or 
that of husband and wife. For these are the ratios in which the part of 
the soul that has a rational principle stands to the irrational part; and 
it is with a view to these parts that people also think a man can be unjust 
to himself, viz. because these parts are liable to suffer something contrary 
to their respective desires; there is therefore thought to be a mutual 
justice between them as between ruler and ruled.
Let this be taken as our account of justice and the other, i.e. 
the other moral, virtues.