Charles R. Pigden

This is a commentary on Adrian Heathcote’s interesting paper ‘Hume’s Master Argument’. Heathcote contends that No-Ought-From-Is is primarily a logical thesis, a ban on Is/Ought inferences which Hume derives from the logic of Ockham. NOFI is thus a variation on what Heathcote calls ‘Hume’s Master Argument’, which he also deploys to prove that conclusions about the future (and therefore a-temporal generalizations) cannot be derived by reason from premises about the past, and that conclusions about external objects or other minds cannot be derived by reason from premises about impressions. Heathcote raises an important question. Having (apparently) argued that our inductive inferences are not justified by reason, Hume puts them down to Custom, and seems to suggest that we OUGHT to indulge this propensity but NOt the superstitious propensities that lead to religious belief. (Query: Why is it right to indulge one non-rational propensity but not the others?) Finally Heathcote argues that just as there are valid, but not formally valid, arguments taking us from claims about inferential relations to claims about what we ought to believe, so there may be valid, but not formally valid, arguments taking us from factual claims about some situation to claims about what we ought to do. I reply that Hume does indeed have a Master Argument and that it does rely on logical principles but not on the logic of Ockham which had been largely forgotten by Hume’s day. Instead Hume relies on the idea widely believed in the 18th Century and taught to Hume at Edinburgh by his logic Professor Colin Drummond, that in a logically valid argument the conclusion is contained in the premises. I reconstruct Hume’s Master Argument using this principle. I draw a careful distinction between two theses: 1) that we cannot get from non-moral premises to moral conclusions with the aid of logic alone and 2) that we cannot get from non-moral premises to moral conclusions with aid of analytic bridge principles. Hume believed the first but not the second. What then is the role of NOFI in the larger argument of the Treatise? To show that the truths of ethics cannot be derived via logic from self-evident truths of some other kind and thus that they are not demonstrable. How can we make sense of Hume’s apparent belief that it is sometimes right to transcend reason and sometimes not? In the case of Custom, we live in a world governed by causal regularities, and, in such a world, induction is in fact a fairly reliable belief-forming mechanism. Thus a suitably qualified spectator (one aware of the kind of world we live in) would tend to approve of indulging it, even if it cannot be justified by reason. However, our superstitious propensities are (and can be known to be) unreliable, since they produce different and inconsistent results in different people. Thus it is it is wrong (something a suitably qualified spectator would disapprove of) to indulge the faculty of Superstition. I also take issue with Heathcote’s penchant for valid, but not formally valid, inferences. I supply the missing premises for Heathcote’s Is/Ought inferences and argue that they are either not true or not necessary

Contemporary ethical thought owes a great deal to David Hume whose work has inspired theories as diverse as non-cognitivism, error theory, quasi-realism, and instrumentalism about practical reason. This timely volume brings together an international range of distinguished scholars to discuss and dispute issues revolving around three closely related Humean themes which have recently come under close scrutiny. First is Hume's infamous claim that 'Reason is, and ought only to be, the slave of the passions'. Second, the Motivation Argument for the view that 'The rules of morality...are not conclusions of our reason'. The third and final theme is that of virtue, re-examined here in the context of new interpretational debates concerning Hume's thought on moral motivation. Contributors: Annette Baier, Stephen Finlay, Kent Hurtig, Rosalind Hursthouse, Richard Joyce, Norva Y. S. Lo, Graham Oddie, Herlinde Pauer-Studer, Luke Russell, Constantine Sandis, Michael Smith, Christine Swanton

Until very recently the received wisdom on Russell’s moral philosophy was that it is uninspired and derivative, from Moore in its first phase and from Hume and the emotivists in its second. In my view this is a consensus of error. In the latter part of this essay I contend: 1) that Russell’s ‘work in moral philosophy’ had at least three, and (depending how you look at it) up to six ‘main phases’; 2) that in some of those phases, it was not derivative, but on the contrary, highly original; 3) that Russell was a pioneer of two of the chief forms of ethical anti-realism that have dominated debate in this century, emotivism and the error theory (so that if the theory of Human Society was derived from emotivism, it was derived from a family of theories that Russell himself helped to create); 4) that the revolt against Hegelianism, which led to the birth of Analytic Philosophy, had an ethical dimension to it; and 5) that Russell played an important part in the debates that led up to Moore’s Principia Ethica, so that the view form which his own opinions were derived is one that he helped to develop. I also argue that Russell himself pioneered a rather puritanical conception of philosophy which tended to extrude his own writings on politics and practical ethics as not really philosophical. Since this conception has been largely abandoned, it is time to let them back into the fold. I argue that this views of practical affairs are often backed by interesting philosophical arguments, illustrating this thesis with a reconstruction and critique of Russell’s Hobbesian argument for world government.

_Russell on Ethics_ presents a coherent and comprehensive collection of Russell's ethical writings, drawing on a wide range of his publications on ethical concerns, many of which have been difficult to access by students and general readers. Charles Pigden provides an accessible introduction to the papers, situating them within the field of ethics as a whole and detailed annotations on the papers themselves, analysing their arguments and exploring their relevance to current concerns. _Russell on Ethics_ represents a valuable insight into Russell as an ethicist, which will be useful to both specialist and non-specialist alike.