  Though (i)-(iv) are framed in terms of Reid's distinction between primary and secondary qualities, none of these four major positions begins from a considered account of Reid's views on the perceptual and epistemological status of qualities. Consider (ii). This characterization of aesthetic qualities is not itself reason to dismiss Reid's ontology of aesthetic qualities as incoherent. This is because one interesting feature of Reid's distinctions between primary and secondary qualities is that what is a primary quality for one person may be a secondary quality for another. Reid's aesthetics is an under-explored area ripe for further research.