•  384
    Primitively rational belief-forming processes
    In Andrew Reisner & Asbjørn Steglich-Petersen (eds.), Reasons for Belief, Cambridge University Press. pp. 180--200. 2011.
    Intuitively, it seems that some belief-forming practices have the following three properties: 1. They are rational practices, and the beliefs that we form by means of these practices are themselves rational or justified beliefs. 2. Even if in most cases these practices reliably lead to correct beliefs (i.e., beliefs in true propositions), they are not infallible: it is possible for beliefs that are formed by means of these practices to be incorrect (i.e., to be beliefs in false propositions). 3.…Read more
  •  413
    Choosing Rationally and Choosing Correctly
    In Sarah Stroud & Christine Tappolet (eds.), Weakness of Will and Practical Irrationality, Oxford University Press. pp. 201--229. 2007.
    Let us take an example that Bernard Williams (1981: 102) made famous. Suppose that you want a gin and tonic, and you believe that the stuff in front of you is gin. In fact, however, the stuff is not gin but petrol. So if you drink the stuff (even mixed with tonic), it will be decidedly unpleasant, to say the least. Should you choose to drink the stuff or not?
  •  1449
    Justified Inference
    Synthese 189 (2): 273-295. 2012.
    What is the connection between justification and the kind of consequence relations that are studied by logic? In this essay, I shall try to provide an answer, by proposing a general conception of the kind of inference that counts as justified or rational.
  •  519
    The normative force of reasoning
    Noûs 40 (4). 2006.
    What exactly is reasoning? Like many other philosophers, I shall endorse a broadly causal conception of reasoning. Reasoning is a causal process, in which one mental event (say, one’s accepting the conclusion of a certain argument) is caused by an antecedent mental event (say, one’s considering the premises of the argument). Just like causal accounts of action and causal accounts of perception, causal accounts of reasoning have to confront a version of what has come to be known as the problem of…Read more
  •  557
    Defending double effect
    Ratio 24 (4): 384-401. 2011.
    This essay defends a version of the Doctrine of Double Effect (DDE) – the doctrine that there is normally a stronger reason against an act that has a bad state of affairs as one of its intended effects than against an otherwise similar act that has that bad state of affairs as an unintended effect. First, a precise account of this version of the DDE is given. Secondly, some suggestions are made about why we should believe the DDE, and about why it is true. Finally, a solution is developed to the…Read more
  •  178
    Two Grades of Non-consequentialism
    Criminal Law and Philosophy 10 (4): 795-814. 2016.
    In this paper, I explore how to accommodate non-consequentialist constraints with a broadly value-based conception of reasons for action. It turns out that there are two grades of non-consequentialist constraints. The first grade involves attaching ethical importance to such distinctions as the doing/allowing distinction, and the distinction between intended and unintended consequences that is central to the Doctrine of Double Effect. However, at least within the value-based framework, this firs…Read more
  •  322
    The Weight of Moral Reasons
    Oxford Studies in Normative Ethics (Ed. Mark Timmons) 3 35-58. 2013.
    This paper starts by giving an interpretation of the notorious question "Why be moral?" Then, to answer that question, it develops an account of why some moral reasons -- specifically, the moral reasons that ground moral requirements -- are sufficiently weighty that they outweigh all countervailing reasons for action.
  •  1045
    The aim of belief
    Philosophical Perspectives 16 267-97. 2002.
    It is often said, metaphorically, that belief "aims" at the truth. This paper proposes a normative interpretation of this metaphor. First, the notion of "epistemic norms" is clarified, and reasons are given for the view that epistemic norms articulate essential features of the beliefs that are subject to them. Then it is argued that all epistemic norms--including those that specify when beliefs count as rational, and when they count as knowledge--are explained by a fundamental norm of correct be…Read more
  •  308
    An Inferentialist Conception of the A Priori
    Oxford Studies in Epistemology 5. 2015.
    This paper offers an account of the a priori. According to this account, the fundamental notion is not that of a priori knowledge, or even of a priori justified belief, but a notion of an a priori justified inferential disposition. The rationality or justification of such a priori justified inferential dispositions is explained purely by some of the basic cognitive capacities that the thinker possesses, independently of any further experiences or other conscious mental states that the thinker ha…Read more
  •  621
    Rational 'ought' implies 'can'
    Philosophical Issues 23 (1): 70-92. 2013.
    Every kind of ‘ought’ implies some kind of ‘can’ – but there are many kinds of ‘ought’ and even more kinds of ‘can’. In this essay, I shall focus on a particular kind of ‘ought’ – specifically, on what I shall call the “rational ‘ought’”. On every occasion of use, this kind of ‘ought’ is focused on the situation of a particular agent at a particular time; but this kind of ‘ought’ is concerned, not with how that agent acts at that time, but with what beliefs or intentions the agent has at the tim…Read more
  •  1990
    Outright Belief
    Dialectica 66 (3). 2012.
    Sometimes, we think of belief as a phenomenon that comes in degrees – that is, in the many different levels of confidence that a thinker might have in various different propositions. Sometimes, we think of belief as a simple two-place relation that holds between a thinker and a proposition – that is, as what I shall here call "outright belief".
  •  178
    The Price of Non‐Reductive Physicalism
    Noûs 34 (3): 400-421. 2000.
    Nonreductive physicalism faces a serious objection: physicalism entails the existence of an enormous number of modal facts--specifically, facts about exactly which physical properties necessitate each mental property; and, it seems, if mental properties are irreducible, these modal facts cannot all be satisfactorily explained. The only answer to this objection is to claim that the explanations of these modal facts are themselves contingent. This claim requires rejecting "S5" as the appropriate l…Read more
  •  201
    How we know what ought to be
    Proceedings of the Aristotelian Society 106 (1). 2006.
    This paper outlines a new approach to the epistemology of normative beliefs, based on a version of the claim that “the intentional is normative”. This approach incorporates an account of where our “normative intuitions” come from, and of why it is essential to these intuitions that they have a certain weak connection to the truth. This account allows that these intuitions may be fallible, but it also seeks to explain why it is rational for us to rely on these intuitions in forming normative beli…Read more
  •  606
    The meaning of 'ought'
    In Russ Shafer-Landau (ed.), Oxford Studies in Metaethics: Volume 1, Clarendon Press. pp. 127-160. 2006.
    In this paper, I apply the "conceptual role semantics" approach that I have proposed elsewhere (according to which the meaning of normative terms is given by their role in practical reasoning or deliberation) to the meaning of the term 'ought'. I argue that this approach can do three things: It can give an adequate explanation of the special connection that normative judgments have to practical reasoning and motivation for action. It can give an adequate account of why the central principles of …Read more
  •  207
    Contextualism about justified belief
    Philosophers' Imprint 8 1-20. 2008.
    This paper presents a new argument for a form of contextualism about ‘justified belief’, the argument being based on considerations concerning the nature of belief. It is then argued that this form of contextualism, although it is true, cannot help to answer the threat of scepticism. However, it can explain many other puzzling phenomena: it can give an account of the linguistic mechanisms that determine how the extension of ‘justified belief’ shifts with context; it can help to defuse some puzzl…Read more
  •  750
    The Fundamental Argument for Same Sex Marriage
    Journal of Political Philosophy 7 (3). 1999.
    This paper offers an argument in favour of the conclusion that it is seriously unjust to exclude same-sex couples from the institution of civil marriage. The argument is based on an interpretation of what the institution of marriage essentially is, and of its essential rationale; the crucial claim is that although marriage is a legal institution, it is also a social institution, involving a "social meaning" -- a body of common knowledge and expectations about marriage that is generally shared th…Read more
  •  267
    Moral Disagreement among Philosophers
    In Michael Bergmann & Patrick Kain (eds.) https://philpapers.org/rec/BERCTM-3, Oxford University Press. pp. 23-39. 2014.
    There is not only moral disagreement among ordinary people: there is also moral disagreement among philosophers. Since philosophers might seem to be in the best possible position to reach the truth about morality, such disagreement may suggest that either there is no single truth about morality, or at least if there is, it is unknowable. The goal of this paper is to rebut this argument: the best explanation of moral disagreement among philosophers is quite compatible with the thesis that many mo…Read more
  •  390
    Scanlon on Double Effect (review)
    Philosophy and Phenomenological Research 83 (2): 464-472. 2011.
    In this new book Moral Dimensions, T. M. Scanlon (2008) explores the ethical significance of the intentions and motives with which people act. According to Scanlon, these intentions and motives do not have any direct bearing on the permissibility of the act. Thus, Scanlon claims that the traditional Doctrine of Double Effect (DDE) is mistaken. However, the way in which someone is motivated to act has a direct bearing on what Scanlon calls the act's "meaning". One particularly important kind of "…Read more
  •  543
    The Coherence of Thrasymachus
    Oxford Studies in Ancient Philosophy 53 33-63. 2017.
    In Book I of the Republic, or so I shall argue, Plato gives us a glimpse of sheer horror. In the character, beliefs, and desires of Thrasymachus, Plato aims to personify some of the most diabolical dangers that lurk in human nature. In this way, the role that Thrasymachus plays for Plato is akin to the role that for Hobbes is played by the bellum omnium contra omnes, the war of all against all, which would allegedly be the inevitable result of a "state of nature", where human beings have no gove…Read more
  •  138
    Value Judgement: Improving Our Ethical Beliefs
    Philosophical Review 107 (3): 447. 1998.
    This is a review of James Griffin's book "Value-Judgement: Improving Our Ethical Beliefs".