Task: Text Categorization
Input (English): One work by this thinker asserts that physical and mental facts are independent, and it supports the title concepts with "truisms" like "my body existed yesterday". This thinker argued that blue are not equal to the sensations of objects in an that refuted both Descartes and McTaggart. In another work, this philosopher posited that good is a "simple concept" with an "opened ended" definition that cannot be determined through the naturalistic fallacy. For 10 points, name this English analytic philosopher who wrote "A Defence of Common Sense", "The Refutation of Idealism" and Principia Ethica.
Output (English): Social Science