Patience is the moral virtue that moderates the passion and expression of anger in accordance with right reason. Since anger itself is neither morally good nor morally evil, patience is not merely a negative habit. Through the habit of patience, reason both restrains anger that is unjust in its motives or intended effects and utilizes just anger when it can attain virtuous ends. Since anger and frustration can quickly overcome good judgment, the virtue of patience is a great aid to the preservation of prudence.