An argument against objective morality that defeats itself
13:24
An Explanation of the Normative-Descriptive Distinction (and the varieties of normativity)
47:59
A.J. Ayer's Emotivist Theory of Moral Language
30:35
Bernard Williams' Attack on Moral Relativism
28:09
Is Moral Skepticism Self-Refuting? (No, but it has other problems)
24:17
Does Occam's Razor rule out Objective Morality?
1:13:55
Does Objective Morality Exist? - A philosophical presentation and discussion
23:39
David Hume's Argument Against Moral Realism
51:01