 Two models of moral knowledge predominate in defences of particularism: a perceptual model and a skill based model. According to the perceptual model successful moral judgment is properly analogous to sense perception even if it is not, literally, a form of sense perception (McDowell 1979, 1985; McNaughton 1988). Moral judgment on this view depends upon a range of sensibilities, developed through experience and acculturation. Once developed, however, one can just “see”, for example, that a certain response is merited by a situation. As John McDowell puts it, 