Is a fundamental justification of morality possible?

Abstract: Does morality need justification? And if yes, what kind of justification will do the proper job? Peter Danielson distinguishes between fundamental and non-fundamental justification. A fundamental justification is a justification of a realm that does not appeal to any of the concepts of that realm. In the case of morality this means a justification formulated in amoral or non-moral terms. A non-fundamental justification of morality, on the other hand, assumes some moral premise(s), and therefore assumes what is to be proven. Thus, a non-fundamental justification is really no justification at all. Or as Danielson puts it, non-fundamental justification ?begs the central question of ethical theory?.