Principia ethica

About “Principia ethica”

Principia Ethica is a 1903 book by British philosopher G. E. Moore. In it, Moore challenges the definition of the term "good" in ethics. He argues that "good" cannot be defined because any attempt to do so leads to the naturalistic fallacy. His work was influential and marked a significant development in moral philosophy. The book is considered a foundational text in ethical theory. (Summary adapted from Wikipedia, CC BY-SA 4.0.)