Instructions: 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.
Input: This writer built upon work by John Grote and William James in distinguishing between "knowledge by acquaintance" and "knowledge by description". He also developed James' idea that the basic building block of everything was neither mind nor matter, his theory of neutral monism. In one of his works, he explained why he did not believe in God and immortality and did not believe Christ was the the best and wisest of men, and he also compared belief in God to belief in a celestial teapot. This thinker developed type theory to resolve a problem with Gottlob Frege's set theory, which he found to allow his paradox of the set of all sets that are not members of themselves. Name this author of Why I Am Not a Christian who worked with Alfred North Whitehead on Principia Mathematica.
Output:
Social Science