Online research in philosophy

This book defends a form of ethical intuitionism, according to which (i) there are objective moral truths; (ii) we know some of these truths through a kind of immediate, intellectual awareness, or "intuition"; and (iii) our knowledge of moral truths gives us reasons for action independent of our desires. The author rebuts all the major objections to this theory and shows that the alternative theories about the nature of ethics all face grave difficulties.

Robert Audi’s The Good in the Right undertakes the magisterial work of reviving the intuitionism of W.D. Ross, rescuing Ross from the overlapping shadows of Henry Sidgwick, G. E. Moore, and, to a lesser extent, H. A. Prichard, marrying Ross to Kant, and so working to produce "a full-scale moral philosophy providing both an account of moral principles and judgments—a metaethical account—and a set of basic moral standards" that might be employed in moral reasoning. The book is magnificent in ambition and impressive in detail.

Robert Audi's ethical intuitionism (Audi, 1997, 1998) deals effectively with standard epistemological problems facing the intuitionist. This is primarily because the notion of self-evidence employed by Audi commits to very little. Importantly, according to Audi we might understand a self-evident moral proposition and yet not believe it, and we might accept a self-evident proposition because it is self-evident, and yet fail to see that it is self-evident. I argue that these and similar features give rise to certain challenges to Audi's intuitionism. It becomes harder to argue that there are any self-evident propositions at all, or more than just a few such propositions. It is questionable whether all moral propositions that we take an interest in are evidentially connected to self-evident propositions. It is difficult to understand what could guide the sort conceptual revision that is likely to take place in our moral theorising. It is hard to account for the epistemic value of the sort of systematicity usually praised in moral theorising. Finally, it is difficult to see what difference the truth of Audi's ethical intuitionism would make to the way in which we (fail to) handle moral disagreement.

The aim of this paper is to defend moral intuitionism, in its new formulations, against the criticism that there is something objectionably non-natural about its conception of moral properties. The force of this complaint depends crucially on what it means to be a non-natural property. I consider a number of ways of drawing the natural/non-natural distinction and argue that, once the notion of 'non-natural property' is sufficiently clarified, it fails to figure in a compelling argument against moral intuitionism.

As its title suggests, Robert Audi’s The Good in the Right1 defends an intuitionist moral view like W.D. Ross’s in The Right and the Good. Ross was an intuitionist, first, in metaethics, where he held that there are self-evident moral truths that can be known by intuition. But he was also an intuitionist in the different sense used in normative ethics, since he held that there are irreducibly many such truths. Some concern the intrinsic goods, which are in turn plural, so there are prima facie duties to promote pleasure, knowledge, virtue, and just distributions. But others are deontological, requiring one apart from any consequences to keep promises, not lie, make reparations, express gratitude, and not injure others. Audi embraces both these intuitionist views, but in each case with an important addition. Ross sometimes said that if a proposition does not need proof, it is incapable of proof, or cannot be justified inferentially. Audi argues persuasively that this is not so. A proposition that is selfevident, in the sense that understanding it justifies one in believing it, can also be derivable from other self-evident propositions in a way that increases its justification. And he exploits this possibility in his normative ethics. Whereas Ross held that his prima facie duties are underivative, Audi suggests that, while self-evident, they can also be grounded in a more abstract principle. More specifically, he argues in Chapter 4 of his book that they can be grounded in Kant’s categorical imperative, which he applies primarily in its second, or formula of humanity, version. The result is to transform what Audi calls Rossian intuitionism into Kantian 1 intuitionism, where specific duties about promoting pleasure and keeping promises derive from a more fundamental requirement to respect rational personhood. I will not challenge Audi’s version of metaethical intuitionism, which I think is the most subtle and persuasive yet given. Nor will I question his normative starting-point in Ross’s theory of prima facie duties, which I find unimpeachable..

Walter Sinnott-Armstrong has argued against moral intuitionism, according to which some of our moral beliefs are justified without needing to be inferred from any other beliefs. He claims that any prima facie justification some non-inferred moral beliefs might have enjoyed is removed because many of our moral beliefs are formed in circumstances where either (1) we are partial, (2) others disagree with us and there is no reason to prefer our moral judgement to theirs, (3) we are emotional in a way that clouds our judgement, (4) the circumstances are conducive to illusion, or (5) the source of our moral beliefs is unreliable or disreputable. I take issue with the elements of Sinnott-Armstrong’s argument that centre on (1) to (3) and (5), concluding that his case against moral intuitionism is unpersuasive.

The main ideas behind Brouwer’s philosophy of Intuitionism are presented. Then some critical remarks against Intuitionism made by William Tait in “Against Intuitionism” [Journal of Philosophical Logic, 12, 173–195] are answered.

According to moral intuitionism, moral properties are objective, but our cognitions of them are not always based on premises. In this paper, I develop a novel version of moral intuitionism and argue that this new intuitionism is worthy of closer attention. The intuitionistic theory I propose, while inspired by the early twentieth-century intuitionism of W. D. Ross, avoids the alleged errors of his view. Furthermore, unlike Robert Audi's contemporary formulation of intuitionism, my theory has the resources to account for the noninferential character of particular, as opposed to merely general, moral beliefs. I achieve this result by avoiding the appeal to self-evidence to explain the possibility of noninferential moral knowledge.