Virtues are morally good habits or character traits. Aristotle proposed a virtue theory where virtues develop through training and practice. According to Aristotle, virtues are states of character that allow one to act and feel appropriately. He argued that virtues are developed through habituation by families and communities. Some examples of virtues include courage, temperance, generosity, and honesty. For professionals, virtues can be categorized as self-direction virtues like humility and courage, public-spirited virtues like fairness and leadership, teamwork virtues like collegiality and cooperation, and proficiency virtues like competence and diligence.