This document defines ethics and discusses its scope and methods. It provides several definitions of ethics, describing it as the science of customs or habits in society and the study of right and good human conduct. It notes ethics is a normative science that seeks to determine moral standards rather than describe natural phenomena. The document outlines several methods of ethics, including psychological, historical, and metaphysical approaches. It states the true method is both empirical and transcendental, systematically explaining moral judgments. The objective of ethics is defining the highest good for humans or society as a basis for moral reasoning.