In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Q: This thinker is famous for his writings on the concept of the "naturalistic fallacy" within the context of ethical systems. Editor of the periodical Mind, he began teaching in 1911 as a follower of Kant's transcendental epistemology, and went on to expound on the need to carefully clarify and examine the meaning of propositions while championing common sense. The author of Refutation of Idealism and major influence on the Bloomsbury Group, FTP, who was this major British philosopher, the author of Principia Ethica
A:
Social Science