Full Idea
Some people who perform just acts are still not just (for example, if the good act is done unwillingly or ignorantly).
Clarification
'Justice' is the Greek word 'dikaiosuné', which is also general moral rightness
Gist of Idea
People who perform just acts unwillingly or ignorantly are still not just
Source
Aristotle (Nicomachean Ethics [c.334 BCE], 1144a10)
Book Reference
Aristotle: 'Ethics (Nicomachean)', ed/tr. ThomsonJ A K/TredennickH [Penguin 1976], p.222
A Reaction
This is because virtue must be an 'activity of the soul'. The thought seems to be that the truly good action involves the commitment of the whole agent, not just a part of them.
Related Idea
Idea 34 The good for man is an activity of soul in accordance with virtue [Aristotle]