For there is but one essential justice which cements society, and one law which establishes this justice. This law is right reason, which is the true rule of all commandments and prohibitions. Whoever neglects this law, whether written or unwritten, is necessarily unjust and wicked.
To do something, say something, see something, before anybody else -- these are things that confer a pleasure compared with which other pleasures are tame and commonplace, other ecstasies cheap and trivial.
Justice in the individual is now defined analogously to justice in the state. The individual is wise and brave in virtue of his reason and spirit respectively: he is disciplined when spirit and appetite are in proper subordination to reason. He is just in virtue of the harmony which exists when all three elements of the mind perform their proper function and so achieve their proper fulfillment; he is unjust when no such harmony exists.
The basic notion of justice, is that the rights of everybody are equals, in principle. In the rights of others, we have to respect our own rights. It is only in that condition that we can reasonnably require that it be respected by others.