Aristotle, Nicomachean Ethics
H. Rackham, Ed.

as modest people are thought to do, for an equitable man is apt to take less than his due—this is a case of acting unjustly towards oneself. But perhaps this also requires qualification. For the man who gave himself the smaller share may possibly have got a larger share of some other good thing, for instance glory, or intrinsic moral nobility. Also the inference may be refuted by referring to our definition of acting unjustly: in the case supposed, the distributor has nothing done to him against his wish; therefore he does not suffer injustice merely because he gets the smaller share: at most he only suffers damage. [10]

And it is clear that the giver as well as the receiver of an undue share may be acting unjustly, and that the receiver is not doing so in all cases. For the charge of injustice attaches, not to a man of whom it can be said that he does what is unjust, but to one of whom it can be said that he does this voluntarily, that is to say one from whom the action originates; and the origin of the act in this case lies in the giver and not in the receiver of the share. [11]

Again, ‘to do a thing’ has more than one meaning. In a certain sense a murder is done by the inanimate instrument, or by the murderer's hand, or by a slave acting under orders. But though these do what is unjust, they cannot be said to act unjustly.¹ [12]

Again, although if a judge has given an unfair judgement in ignorance, he is not guilty of injustice, nor is the judgement unjust, in the legal sense of justice （though the judgement is unjust in one sense, for legal justice is different from justice in the primary sense）, yet if he knowingly gives an unjust judgement,