Full Idea
The Greek 'dikaiosune' is inadequately translated as 'justice', but also as any other word; it combines the notion of fairness in externals with that of personal integrity in a way that no English word does.
Gist of Idea
'Dikaiosune' is justice, but also fairness and personal integrity
Source
Alasdair MacIntyre (A Short History of Ethics [1967], Ch. 1)
Book Reference
MacIntyre,Alasdair: 'A Short History of Ethics' [Routledge 1967], p.11
A Reaction
'Dikaiosune' is said to be the main topic of Plato's 'Republic'. Plato seems to have meant it to cover whatever makes a good character. Justice in behaviour presumably flows from internal justice of character (which is, roughly, inner harmony).