Normativity be naturalized?

Normativity is of great interest in ethics, aesthetics, epistemology, indeed in any discipline that attempts to account for certain standards by which we guide our thought and action. In the current intellectual climate, which is often dominated by naturalism and an emphasis on the scientific habit of mind, normativity presents a special challenge because normative statements – above all statements saying what we ought to do, or are justified in believing, or should consider ultimately good – do not seem to be ascriptions of natural properties to what they concern. If they are not, then they are not appraisable, or at least not fully so, using the methods of the sciences or even using those together with common-sense observations of the world.