Principia Ethica

A philosophical treatise written in the early 20th century. The work delves into the foundational questions of ethics, particularly focusing on the nature of good and the principles of ethical reasoning. It seeks to clarify essential ethical concepts and questions, distinguishing between what ought to exist for its own sake and what actions ought to be performed. At the start of ''Principia Ethica,'' Moore establishes the premise that ethical confusion often arises from a lack of clarity about the questions being posed, arguing for the necessity of understanding what is meant by 'good' before attempting to define it. He distinguishes between two primary kinds of questions in ethics: those related to the intrinsic goodness of things and those concerning the rightness of actions. Moore contends that ethical propositions regarding what exists for its own sake are indefinable and presents the so-called 'naturalistic fallacy,' which critiques the conflation of moral terms with natural properties. He emphasizes the importance of this distinction as a foundation for serious ethical inquiry.