Nick Zangwill

I argue against the analytic moral functionalist view propounded by Frank Jackson and Philip Pettit. I focus on the ‘input’ clauses of our alleged ‘folk moral theory’. I argue that the examples they give of such input clauses cannot plausibly be interpreted as analytic truths. They are in fact substantive moral claims about the moral ‘domain’. It is a substantive claim that all human beings have equal moral standing. There are those who have rejected this, such as Herman Göring. He was loyal to a sub-class of humankind, but he suffered no conceptual confusion. Claims about what is morally relevant are substantive claims that cannot be known on purely conceptual grounds.

What can a moral realist say about why we should take morality seriously and about the relation between morality and rationality? I take off from Christine Korsgaard's criticism of moral realism on this score. The aim is to achieve an understanding of the relation between moral and rational properties and of the role of practical deliberation on a realist view. I argue that the justification for being concerned with rational and moral normative properties may not be an aspect of our minds to which we have access. I argue against a view that gives automatic pride of place to the rational properties of our mind by drawing attention to valuable non-rational modes of thought such as creative, imaginative and instinctive thought. Thus the value of taking account of rationality is contingent on its benefits. But this is not why we should be taking account of morality

That knowledge does not depend on truth is a consequence of a basic principle concerning dependence applied to the case of knowledge: that A depends on C, and that B depends on C, do not mean that A depends on B. This is a standard causal scenario, where two things with a common cause are not themselves causally dependent. Similarly, knowledge that p depends in part on some combination of the belief that p, the fact that p and the proposition that p, and perhaps other facts or even objects. Truth depends on a proper sub-class of the elements on which knowledge depends. It does not follow that knowledge depends on truth, and the idea that it does is implausible