they seemed to me to presume that morality is something you should have regardless of the reason for it rather than seriously questioning the reasons for possessing it.
One thing to consider: Why do you need a reason to be moral/​altruistic but not a reason to be selfish? (Or, if you do need a reason to be selfish, where does the recursion end, when you need to justify every motive in terms of another?)
One thing to consider: Why do you need a reason to be moral/​altruistic but not a reason to be selfish? (Or, if you do need a reason to be selfish, where does the recursion end, when you need to justify every motive in terms of another?)