شکاکیت اخلاقى

Moral Scepticism, in Routledge Encyclopedia of Philosophy, (London: Routledge, 1998).
1. Mark T. Nelson
2. Moral relativism
3. Moral subjectivism
4. Moral egoism
5. Justification
6. The Is/Ought Gap Theory
7. Pyrrhonists
8. Sextus
9. Philo
10. G.E. Moore
11. Principia Ethica
12. W. D. Ross
13. Prima faci duty
14. Actual Duty
15. Truth
16. Noncognitivists
17. Truth-value
18. Cognitive
19. Error theory
20. David Hume
21. Emotivists
22. A. J. Ayer
23. C. L. Stevenson
24. Attitudes
25. Prescriptivists
26. R. M. Hare
27. G. L. Mackie
28. Gilbert Harman
29. Immorality
30. Moral Intuitions
31. Reflective equilibrium
32. Toulmin
33. Utilitarian
34. Peter Geach
35. David Brink
36. Geoffrey Sayre-McCord
37. Nicholas Sturgeon
38. Ronald Dworkin
39. Tomas Nagel
40. John McDowell
41. Crispin Wright
42. Minimalist
43. Coherentist
44. Correspondence theories of truth