Example image of eyePlorer eyePlorer map for 'Non-cognitivism': Meta-ethics Proposition Sentence (linguistics) Truth value Cognitivism (ethics) Knowledge Attitude (psychology) Speech act Logical positivism Alfred Jules Ayer Charles Stevenson Emotivism Vienna Circle R. M. Hare Universal prescriptivism Allan Gibbard Quasi-realism Simon Blackburn Correspondence theory of truth Tautology Categorical imperative Golden Rule Ten Commandments Amoralism Heracles Imperative logic Naturalistic fallacy Argument from queerness Moral realism Occam's razor Argument Magnetic field Oviparity Ethical intuitionism A priori and a posteriori Analytic-synthetic distinction Syllogism Grammatical mood Imperative Realis mood Mind (journal) Peter Glassen Stanford Encyclopedia of Philosophy Ethical subjectivism Moral sense theory Philippa Foot Cornell realism Ethics Is-ought problem Expressivism