After a brief outline of Enoch’s defense of robust realism in his Taking Morality Seriously, I focus on Enoch’s taking-morality-seriously thought by making explicit the assumptions I see involved in it. Enoch’s argument from impartiality is then reconstructed to show how these assumptions are at work. Next, I explain the reasons why Enoch does not succeed in converting these assumptions into a positive argument for the thesis implied by robust realism that there is a moral objectivity. Finally, I conclude that (...) the critical analysis provided casts a shadow on the reliability of the taking-morality-seriously thought as a basis of a theoretical inquiry into the nature of morality. (shrink)