This is a video lecture on chapter 17, titled “Values in a Scientific World”, of Russ Shafer-Landau’s book, ‘Whatever Happened to Good and Evil?’ The argument that this chapter considers is one that claims that if one follow’s Occam’s Razor, then one ought to reject the reality of objective moral facts or laws. This is an argument for moral skepticism, and Shafer-Landau offers several responses to it and in defense of moral objectivism. In the end, he claims that this use of occam’s razor defeats itself. This lecture is part of an introductory level philosophy course, Introduction to Ethics.

Occam’s razor applies only to descriptive facts, not normative ones.

This is a video lecture about the different between descriptive claims or laws, on the one hand, and normative claims or laws, on the other. I also explain three different varieties of normativity: the moral, the prudential, and the epistemic. This video was originally produced for use in an introductory level philosophy course, Introduction to Ethics. But it is a stand-alone explanation, so it can be used in any other context.

This is a lecture video about a short selection from book 3 of David Hume’s famous work of philosophy, A Treatise of Human Nature (1739–40). Hume was an empiricist. The lecture of basically a presentation of his argument from empiricism to the conclusion that there are no genuine, objective moral facts residing in actions themselves (rather, there are only sentiments of moral disapprobation or disapproval in us). This lecture of part of Introduction to Ethics.