Wisdom has, in the Western tradition, been listed as one of four cardinal virtues. As a virtue it is a habit or disposition to perform the action with the highest degree of adequacy under any given circumstance. This implies a possession or seeking of knowledge of the given circumstances. This involves an understanding of people, things, events and situations, and the willingness and the ability to apply perceptions, judgments and actions in keeping with an understanding of what is the right course of actions. It often requires control of one's emotional reactions so that universal principles, values, reason and knowledge prevail to determine one's actions. In short, wisdom is a disposition to find the truth coupled with an optimum judgement as to right actions. Synonyms include: prudence, sagacity, discernment, or insight.