Biography
G. E. Moore argued in Principia Ethica that 'good' is simple, indefinable and non-natural, known by intuition. Defining it as a natural property commits the naturalistic fallacy.
Key Ideas
- Good is indefinable (like yellow).
- The naturalistic fallacy.
- The open-question argument.
- Intuitionism.
Topics Appearing In
Exam Importance
Central to Meta-Ethics (intuitionism) and a key AO2 critic of Natural Law (naturalistic fallacy).
Works to explore
Use these titles to locate the scholar's argument in context. Edition-specific commercial recommendations are kept on the component reading lists.
- G. E. Moore — Principia Ethica (by the scholar)