ABSTRACT
This chapter argues that moral realism, the idea that there are mind-independent truths about morality that we must include in any valid theory of justice, is false. It relies extensively on prior philosophical works by others, most notably (apart from the scholars discussed in Chapter 1) J.L. Mackie, Gilbert Harman, Joshua Greene, Richard Joyce and Sharon Street. It also argues against moral fictionalism, the practice of pretending that morality is true while knowing it is really false, and instead advocates accepting that morality and justice are human creations, and therefore justifiable only to the extent they promote our interests, broadly conceived.
