The moral philosophy tag is very wide-ranging, and can be used alongside more specific tags like philosophy of effective altruism, longtermism, and moral patienthood.
Further reading
Parfit, Derek (1984) Reasons and Persons, Oxford: Clarendon press.
Sidgwick, Henry (1907) The Methods of Ethics, 7th ed., London: Macmillan.
Related entries
applied ethics | infinite ethics | metaethics | normative ethics | philosophy