This paper sheds light on the views of Mulla Sadra about virtue and action. The main question is how he explains the relationship, if any, between virtue and action. Mulla Sadra defines moral virtue as a settled inner disposition by which one acts morally, without need for any reflection or deliberation. This study seeks to explain how, according to Mulla Sadra, a virtue motivates the agent and leads him to do the right action easily. Is virtue the reason for or cause of action? Is there a semantic link between action and virtue? Can we regard an action as right if it is not motivated by a virtue? Another question is about the role of action in the development of moral character. Is virtue acquired through the practice of corresponding acti...