Virtue is a stable "state" of character that allows a person to choose the right action consistently.
Aristotle begins by stating that all human activities aim at some "good". However, most goods (like money or fame) are merely means to an end. The only thing pursued for its own sake is . Aristotle's Nicomachean Ethics
We become just by performing just acts and brave by performing brave acts. Virtue is a stable "state" of character that