The so-called missing explanation argument, put forward by Mark Johnston in the late 80’s purported to show that our ordinary concepts of secondary qualities such as the colours cannot be response-dependent. A number of flaws were soon found in the argument. Partly in response to the criticism directed at the original argument, Johnston presented a new version in 1998. In this paper I show that the new version fails, too, for a simple reason: the kind of explanation which Johnston claims (...) to be incompatible with a response-dependent account of the relevant concept is not an empirical explanation at all, but merely looks like one because of certain factors in Johnston’s stage- setting for the argument. (shrink)

In Chapter 3 of _The Moral Problem, Michael Smith develops a novel and interesting argument in favour of internalism about moral motivation. In this paper I argue that Smith's argument is unsuccessful.

Christine Korsgaard has attempted to defend a distinct approach to metaethics – Neo-Kantian Constructivism. Not only does she present a positive case for her own view, she also attacks existing metaethical positions and even the disctinctions that metaethics has traditionally relied on. This thesis is a sustained examination of this position. I consider whether Korsgaard can legitimately claim to be offering a metaethical position at all, providing her with some defence against the scepticism of some metaethicists. I also examine her (...) attacks on traditional metaethical positions. I argue that her attack on moral realism can be avoided if the realism on offer takes a particular form. In the case of expressivism I claim that Korsgaard’s attack, though not fully developed in her work, motivates an examination of contemporary hybrid-expressivist theories. I argue that these are, as of yet, no advance over their non-hybrid cousins. Finally I examine Korsgaard’s own position, attempting to make it clearer by combining her claims with a framework developed by Crispin Wright for judgement-dependent qualities. This gives Korsgaard her best chance of a distinctive metaethical position. Ultimately, though, the Neo-Kantian approach to morality fails. (shrink)