This document provides an overview of different approaches to determining moral behavior and resolving ethical dilemmas. It discusses deontological and teleological ethical systems, as well as approaches based on ethical formalism, utilitarianism, religion, natural law, virtue ethics, care ethics, egoism, and situational ethics. Examples of real-world ethical dilemmas are also provided to illustrate how different systems might approach issues like corporate responsibility, police misconduct, and charity organization scandals.