Example image of eyePlorer eyePlorer map for 'Ethical intuitionism': Ethical non-naturalism Meta-ethics Moral realism Objectivity (philosophy) Intuition (knowledge) Epistemology Foundationalism Cognitivism (ethics) Deontological ethics Normative ethics W. D. Ross Moral sense theory A priori and a posteriori Self-evidence Empiricism Analogy Harold Arthur Prichard George Edward Moore Principia Ethica Naturalistic fallacy Logical positivism Naturalism (philosophy) Robert Audi Thought experiment Occam's razor Non-cognitivism Knud Ejler Løgstrup Secular ethics Muirhead Library of Philosophy Moral rationalism Expressivism Evaluation approaches An Enquiry Concerning the Principles of Morals Emotivism Moral relativism Intrinsic value (animal ethics) Evaluation Utilitarianism Ethics in religion Animal rights