In this article Geoffrey Klempner argues for an objective basis for morality which is broadly Kantian – seeing my human interests and yours as somehow interlinked as we universalise our shared humanity. He looks at four ethical dilemmas (di means “two” in Greek and lemma means “proof” so a dilemma implies a very strong case for doing both of two alternatives).

http://www.isfp.co.uk/download/Ethical_Dilemmas_Unit2.pdf