Full Idea
When people speak of justice we see that they all mean that kind of state of character that disposes them to perform just acts, and behave in a just manner, and wish for what is just.
Gist of Idea
When people speak of justice they mean a disposition of character to behave justly
Source
Aristotle (Nicomachean Ethics [c.334 BCE], 1129a07)
Book Reference
Aristotle: 'Ethics (Nicomachean)', ed/tr. ThomsonJ A K/TredennickH [Penguin 1976], p.171
A Reaction
No remark shows more clearly that for the Greeks morality is a matter of character, rather than of actions or rules. This doesn't totally disagree with Plato's 'Republic', where justice turns out to be harmony in an individual person.