Christian Piller

Practical reasoning is a process of reasoning that concludes in an intention. One example is reasoning from intending an end to intending what you believe is a necessary means: 'I will leave the next buoy to port; in order to do that I must tack; so I'll tack', where the first and third sentences express intentions and the second sentence a belief. This sort of practical reasoning is supported by a valid logical derivation, and therefore seems uncontrovertible. A more contentious example is normative practical reasoning of the form 'I ought to φ, so I'll φ', where 'I ought to φ' expresses a normative belief and 'I'll φ' an intention. This has at least some characteristics of reasoning, but there are also grounds for doubting that it is genuine reasoning. One objection is that it seems inappropriate to derive an intention to φ from a belief that you ought to φ, rather than a belief that you ought to intend to φ. Another is that you may not be able to go through this putative process of reasoning, and this inability might disqualify it from being reasoning. A third objection is that it violates the Humean doctrine that reason alone cannot motivate any action of the will. This paper investigates these objections

One of the guiding ideas of virtue epistemology is to look at epistemological issue through the lens of practical philosophy. The Gettier Problem is a case in point. Virtue epistemologists, like Sosa and Greco, see the shortcoming in a Gettier scenario as a shortcoming from which performances in general can suffer. In this paper I raise some doubts about the success of this project. Looking more closely at practical philosophy, will, I argue, show that virtue epistemology misconceives the significance of Gettier structures in the practical domain

Two plausible claims seem to be inconsistent with each other. One is the idea that if one reasonably believes that one ought to fi, then indeed, on pain of acting irrationally, one ought to fi. The other is the view that we are fallible with respect to our beliefs about what we ought to do. Ewing’s Problem is how to react to this apparent inconsistency. I reject two easy ways out. One is Ewing’s own solution to his problem, which is to introduce two different notions of ought. The other is the view that Ewing’s Problem rests on a simple confusion regarding the scope of the ought-operator. Then, I discuss two hard ways out, which I label objectivism and subjectivism, and for which G.E. Moore and Bishop Butler are introduced as historical witnesses. These are hard ways out because both of these views have strong counterintuitive consequences. After explaining why Ewing’s Problem is so difficult, I show that there is conceptual room in-between Moore and Butler, but I remain sceptical whether Ewing’s Problem is solvable within a realist framework of normative facts.

GE Moore vehemently defended the view that what actually happens and not what we, even reasonably, expect to happen, determines what we ought to do. ‘The only possible reason that can justify any action’, Moore writes, ‘is that by it the greatest possible amount of what is good absolutely should be realized’. Moore is an objectivist about reasons and duties: The world and not our view of it gives us reasons to act; the way the world is, and not the way we think it is, determines what we ought to do. In his new book Jonathan Dancy agrees: the world itself has normative significance, reality, as Dancy puts it, is practical. On this, most general level Dancy and Moore agree. But unlike Moore’s, Dancy’s objectivism is not embedded in any particular normative theory. And whereas Moore strikes me as hard-nosed, and his position as sharp-edged, Dancy’s position looks, in comparison, softer and subtler. Contrasting the two positions will help to bring out these features of Dancy’s view. But it will also help to explain the worry that Dancy’s view might have departed too far from its origin.

Keith Lehrer's notion of acceptance and its relation to the notion of belief is analyzed in a way that a person only accepts some proposition p if she decides to believe it in order to reach the epistemic aim. This view of acceptance turns out to be untenable: Under the empirical claim that we don't have the power to decide what to beheve it follows that we cannot accept anything. If reaching the truth is the epistemic aim acceptance proves ill-formed, it is impossible to pursue the aim of truth by believing or accepting something because belief itself is a truth-directed attitude. If the epistemic aim is formulated in a weaker sense, combined with other aims, the danger lurks that accepting a proposition p is in the end loosing any connection with the truth of p.

Es wird versucht, die Stellung des Vindizierungsarguments im Gesamtzusammenhang des Induktionsproblems genauer festzulegen, und eine neue Sichtweise dieses Arguments als entscheidungstheoretisches Dominanzargument wird vorgeschlagen. Diese neue Interpretation bewährt sich in der Konfrontation mit alten Einwänden, doch zeigt sich schließlich, daß sich auch gegen diese Form des Vindizierungsarguments ein erfolgreicher Widerlegungsversuch führen läßt. Eine allgemeine Formulierung des vorgebrachten Einwandes erweist sich als stark genug, um auch die dem Vindizierungsargument analogen Rechtfertigungsversuche in anderen Bereichen zurückweisen zu können.