This document provides an overview and comparison of three major ethical theories: virtue theory, utilitarianism, and deontological ethics. It defines each theory and discusses their key aspects. Virtue theory focuses on good character and moral integrity rather than consequences or duties. Utilitarianism suggests that an action is right if it produces the greatest good for the greatest number. Deontology holds that some actions are right or wrong based on inherent duties and moral rules, regardless of outcomes. The document notes that all three theories consider the consequences of actions, though it may not be their main focus.