Discussion question on Hume's Enquiry Concerning the Principles of Morals

1. What is the point of the counterfactuals concerning abundance or great scarcity, altruism or universal thuggery?

2. What justifies laws and obedience to laws?

3. What justifies the double-standard, whereby women have a moral duty to be chaste while men are at a greater liberty to be promiscuous?

4. What explains the obligation to keep promises?