This thinker posited that physical facts were independent from mental ones in one paper and criticized F.H. Bradley in "The Nature of (*) Judgement.
This thinker was challenged in a series of articles putting forth an "adverbial theory" by C.J. Ducasse, and studied under a man who introduced the term "dictate of reason" and wrote The Methods of Ethics. This thinker posited that physical facts were independent from mental ones in one paper and criticized F.H. Bradley in "The Nature of (*) Judgement." This editor of Mind held Thales' analysis of the term "landscaping" in high regard and in order to critique philosophical skepticism, this thinker gave an example referencing his hands in order to prove the existence of an external world. This author of A Defence of Common Sense compared the color yellow to the concept of "goodness" in a text that disputes the naturalistic fallacy and puts forth the Open Question Argument. For 10 points, name this British philosopher who wrote Principia Ethica. 
This thinker was challenged in a series of articles putting forth an "adverbial theory" by C.J. Ducasse, and studied under a man who introduced the term "dictate of reason" and wrote The Methods of Ethics.
G(eorge) E(dward) Moore