Detailed 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.
Q: In political thought, this man contributed a comparison of socialism, anarchism, and syndicalism, three of the titular Roads to Freedom. In another work sometimes viewed as a sequel to his What I Believe, he critiqued organized religion and as a whole, writing that "No one can sit at the bedside of a dying child and claim to believe in God" in an attempt to explain Why I Am Not a (*) Christian. Other works by this man include one written with Alfred North Whitehead, in which he explained the whole of mathematics in terms of logical expressions. For 10 points, name this modern British philosopher who wrote Principia Mathematica.
A:
Social Science