To be morally responsible, a person must act voluntarily and be aware of what they are doing. The Doctrine of the Golden Mean
Aristotle’s most practical contribution is the idea that moral virtue is a between two extremes: excess and deficiency . Aristotle's Nicomachean Ethics - Essay Examples - PapersOwl
For Aristotle, the unique human function is the activity of the soul in accordance with reason .
The Path to Eudaimonia: Virtue and the Golden Mean in Aristotle’s Ethics The Ultimate End: Happiness as Flourishing
We become just by performing just acts and brave by performing brave acts.
True happiness is not a temporary emotion but a state achieved over a complete life. The Nature of Virtue (Arete)
Just as a knife is "good" if it cuts well, a human is "good" if they perform their unique function well.