Jeff Speaks

What can we know about God by reason alone? Philosophical theology is the attempt to obtain such knowledge. An ancient tradition, which is perhaps more influential now than ever, tries to derive the attributes of God from the principle that God is the greatest possible being. Jeff Speaks argues that that constructive project is a failure. He also argues that the related view that the concept of God is the concept of a greatest possible being is a mistake. In the last chapter, he sketches an alternative path forward.

The most widely accepted and well worked out approaches to the foundations of meaning take facts about the meanings of linguistic expressions at a time to be derivative from the propositional attitudes of speakers of the language at that time. This mentalist strategy takes two principal forms, one which traces meaning to belief, and one which analyzes it in terms of communicative intentions. I argue that either form of mentalism fails, and conclude by suggesting that we can do better by focusing on connections between linguistic meaning and the contents of perceptions (rather than beliefs or intentions), and by (following Kripke's approach to reference) replacing questions about the nature of meaning with questions about the nature of term introduction and meaning transmission.

I discuss and defend two arguments against semantic theories which wish to avoid commitment to propositions. The first holds that on the most plausible semantics of a class of natural language sentences, the truth of sentences in that class requires the existence of propositions; and some sentences in that class are true. The second holds that, on the best understanding of the form of a semantic theory, the truth of a semantic theory itself entails the existence of propositions. Much of the discussion engages Davidsonian alternatives to a propositionalist semantic theory.

In Narrow Content, Hawthorne & Yli-Vakkuri provide an admirably clear and precise framework for understanding the debate between internalist and externalist theories of mental content. They also present a series of arguments against internalism. They identify two views — which they call 'thought-relativism' and 'quasi-internalism' — which seem to avoid their main line of argument. I discuss Hawthorne & Yli-Vakkuri's arguments against these two views, and explore a few different ways in which they might be developed.

In this paper I do four things. (1) I explain one clear thing that ‘the problem of the unity of the proposition’ might mean. (2) I lay out a few different versions of the theory of propositions as cognitive acts, and explain why this problem arises for the version of that theory which has been defended in different forms by Peter Hanks and Scott Soames. (3) I argue that the natural ways in which the act theorist might try to solve the problem fail to solve it; (4) I propose a way to fix the problem, and then I explain how the problem re-emerges in the act theorist’s treatment of propositional attitude relations.

Questions about the relative priorities of mind and language suffer from a double obscurity. First, it is often not clear which mental and linguistic facts are in question: we can ask about the relationship between any of the semantic or syntactic properties of public languages and the judgments, intentions, beliefs, or other propositional attitudes of speakers of those languages. Second, there is an obscurity about what 'priority' comes to here.We can approach the first problem by way of the second. Often, talk about one class of facts being prior to another is glossed in terms of the claim that we can give an account of the latter in terms of the former. This gloss might seem to be a small advance, since it is ..

Demonstratives have different semantic values relative to different contexts of utterance. But it is surprisingly difficult to describe the function from contexts to contents which determines the semantic value of a given use of a demonstrative. It is very natural to think that the intentions of the speaker should play a significant role here. The aim of this paper is to discuss a pair of problems that arise for views which give intentions this central role in explaining the characters of demonstratives. As will emerge, these problems lead quickly to a foundational question about the semantics of demonstratives and many other context-sensitive expressions: the question of whether, in explaining their characters, we need to understand them as sensitive, not just to facts about the psychology of the speaker of the context, but also to facts about the audience of the context. I critically examine Jeffrey King’s theory of demonstratives, which answers this question in the affirmative, and argue that it ultimately collapses into a purely speaker-based view of the character of demonstratives. I then show how to develop a much simpler speaker-based theory which both handles all of the cases handled by King’s theory and avoids some of the more serious problems which King’s theory faces. Towards the end I consider how we might solve the very difficult problems which result from cases in which speakers use demonstratives with conflicting referential intentions.

Even if spectrum inversion of various sorts is possible, spectrum inversion without a difference in representation is not. So spectrum inversion does not pose a challenge for the intentionalist thesis that, necessarily, within a given sense modality, if two experiences are alike with respect to content, they are also alike with respect to their phenomenal character. On the contrary, reflection on variants of standard cases of spectrum inversion provides a strong argument for intentionalism. Depending on one’s views about the possibility of spectrum inversion, the impossibility of spectrum inversion without a difference in representation can also be used as an argument against a variety of reductive theories of mental representation

Increasingly, beginning in the 1970’s and 1980’s, many philosophers of language found themselves in a difficult situation. On the one hand, many came to believe that, in order to do semantics properly, as well as to give an adequate treatment of the attitudes, one needed to posit certain entities — propositions — which could be the meanings of sentences (relative to contexts), the contents of mental states, and the primary bearers of truth and falsity. However, many — largely due to the arguments of Scott Soames1 — also came to distrust the standard theoretical account of the nature of propositions, which treated them as sets of worlds, and came to think of them instead as structured entities of some sort

Benj’s paper is a characteristically thoughtful, imaginative, and wide-ranging exploration of the relationship between certain direct realist theories of perception and the nature of perceptual justification — with some formal semantics thrown in for good measure. Here I’ll focus on just one of the many topics about which Benj has something to say: his remarks on the topic of the relationship that must obtain between a perceptual state and a belief in order for the former to immediately justify the latter.

In "Assertion," Geach identified failure to attend to the distinction between meaning and speech act as a source of philosophical errors. I argue that failure to attend to this distinction, along with the parallel distinction between attitude and content, has been behind the idea that meaning and content are, in some sense, normative. By an argument parallel to Geach's argument against performative analyses of "good" we can show that the phenomena identified by theorists of the normativity of content are properties in the first instance of speech act and propositional attitude types, rather than content as such.

In response to arguments against the existence of God, and in response to perceived conflicts between divine attributes, theists often face pressure to give up some pretheoretically attractive thesis about the divine attributes. One wonders: when does this unacceptably water down our concept of God, and when is it, as van Inwagen says, ‘permissible tinkering’ with the concept of God? A natural and widely deployed answer is that it is permissible tinkering iff it is does not violate the claim that God is the greatest possible being. Call this the ’perfect being defense.’ In this paper I lay out some influential uses of the perfect being defense, and then argue that this strategy for defending theism fails.

In the past twenty years, issues about the relationship between perception and thought have largely been framed in terms of the question of whether the contents of perception are nonconceptual. I argue that this debate has rested on an ambiguity in `nonconceptual content' and some false presuppositions about what is required for concept possession. Once these are cleared away, I argue that none of the arguments which have been advanced about nonconceptual content do much to threaten the natural view that perception and thought are relations to the same kind of content.

In "Truth and Meaning", Davidson suggested that a truth theory can do the work of a theory of meaning: it can give the meanings of expressions of a language, and can explain the semantic competence of speakers of the language by stating information knowledge of which would suffice for competence. From the start, this program faced certain fundamental objections. One response to these objections has been to supplement the truth theory with additional rules of inference (e.g. from T-sentences to meaning theorems). I argue that these modifications of Davidson's original idea fail to solve the problems with Davidsonian semantics, and that the prospects for a solution to these problems within the Davidsonian framework are dim. A general lesson to be drawn is that Davidsonian theories do not provide a viable alternative to Russellian and Fregean approaches to semantics which recognize the reality of language-independent contents.

Theories of propositions as complex acts, of the sort recently defended by Peter Hanks and Scott Soames, make room for the existence of distinct propositions which nonetheless represent the same objects as having the same properties and standing in the same relations. This theoretical virtue is due to the claim that the complex acts with which propositions are identified can include particular ways of cognizing, or referring to, objects and properties. I raise two questions about this sort of view—one about what it means to stand in a propositional attitude relation to a complex act of this sort, and one about which ways of cognizing can be parts of propositions. Both questions turn out to be difficult for the complex act theorist to answer in a satisfactory way.

One of Kripke's fundamental objections to descriptivism was that the theory misclassifies certain a posteriori propositions expressed by sentences involving names as a priori. Though nowadays very few philosophers would endorse a descriptivism of the sort that Kripke criticized, many find two-dimensional semantics attractive as a kind of successor theory. Because two-dimensionalism needn't be a form of descriptivism, it is not open to the epistemic argument as formulated by Kripke; but the most promising versions of two-dimensionalism are open to a close relative of that argument.

The nature of predication, and its relation to truth, is the central topic of Davidson’s posthumously published Truth and Predication . The main task which an account of predication should accomplish is a solution to the problem of predication; and that, Davidson tells us, is the problem of explaining what makes some collections of words, but not others, true or false (86). It is so-called because, Davidson thinks, the principal challenge faced by any answer to this problem is the problem of explaining the distinctive contribution made by predicates to the truth or falsity of sentences