Jonathan Knowles

Noam Chomsky claims that we know the grammatical principles of our languages in pretty much the same sense that we know ordinary things about the world (e.g. facts), a view about linguistic knowledge that I term ''cognitivism''. In much recent philosophy of linguistics (including that sympathetic to Chomsky's general approach to language), cognitivism has been rejected in favour of an account of grammatical competence as some or other form of mental mechanism, describable at various levels of abstraction (''non-cognitivism''). I argue for cognitivism and against non-cognitivism. First, I show that the distinction between competence and performance in current linguistics is as clearly made as ever it was, in spite of recent interest in linguistic processing modules. Second, I use these facts about the practice of theoretical linguistics to refute various proposals for a non-cognitivist construal of grammatical competence, and to support cognitivism by reflecting on the inapplicability of a multi-level account of linguistic competence. Cognitivism is then defended against several objections centring around the problems of rational integration and conceptualization of grammatical knowledge. Finally, the conception of competence argued for in relation to linguistics is placed in the larger context of cognitive science research and its implications for philosophy of mind.

I argue that intentional psychology does not stand in need of vindication by a lower-level implementation theory from cognitive science, in particular the representational theory of mind (RTM), as most famously Jerry Fodor has argued. The stance of the paper is novel in that I claim this holds even if one, in line with Fodor, views intentional psychology as an empirical theory, and its theoretical posits as as real as those of other sciences. I consider four metaphysical arguments for the idea that intentional psychological states, such as beliefs, must be seen as requiring in-the-head mental representations for us to be able to understand their characteristic causal powers and argue that none of them validly generate their desired conclusions. I go on to argue that RTM, or some computational version thereof, is not motivated by appeal to the nature of cognitive science research either. I conclude that intentional psychology, though an empirical theory, is autonomous from details of lower level mechanism in a way that renders RTM unwarranted.

Theory of Science provides an accessible but systematic survey of perspectives on science and rationality through the arguments and ideas of leading thinkers of the 20th century, including Einstein, Carnap, Popper, Kuhn, Feyerabend, Hempel, Gadamer, Foucault, and Harding. The book also gives a critical introduction to scientific methodology, including the relationship between theory and observation, the problem of induction, hypothetic-deductive method, truth and progress, and explanation in natural and human science. The book covers the theory of science â?? part of the syllabus in Examen Philosophicum at The Norwegian University of Science and Technology (NTNU) â?? for which there has hitherto been no unitary text book in English. Theory of Science is also suited to use in other courses at various levels, as well as being of interest to a wider audience concerned with the philosophical and social problems of science.

"A critical investigation of modern naturalism is vitally needed for a deeper understanding of pragmatism's ability to offer enriching perspectives on contemporary philosophy of science. The kind of non-reductive naturalism so often associated with pragmatism needs to be assessed for its plausibility, as does whether a pragmatist perspective on different human ways of conceiving of the world can mediate between different points of view, especially those of natural science and common sense"-- Publisher summary.

In recent work Huw Price has defended what he calls a global expressivist approach to understanding language and its relation to the physical world. Global expressivism rejects a representationalist picture of the language-world relation and thereby, by intention at least, also a certain metaphysical conception of what are commonly known as placement problems: how entities of the everyday, common sense world like mental states, meanings, moral values, modalities and so on fit into the natural world. Global expressivism upholds a commitment to substantive enquiry into the naturalistic basis of thought about the world, but pursues this in a pragmatist or non-representationalist ’key’, thereby rendering—as it sees things—traditional metaphysical questions otiose. I am in broad sympathy with many of Price’s arguments and ideas. However, I believe the specific sub-variety of non-representationalism he develops actually fails to secure the anti-metaphysical results he seeks. My arguments have their starting point in the Carnap-Quine debate. Given Price’s view of this, which I endorse, I think it can be made clear that Quine’s view, or something very close to it, presents us with a coherent example of a non-representationalist metaphysical placement project. Though one might reasonably doubt the rationality of or motivation for such a view, Price’s own strongly naturalistic assumptions, as these are evinced in his so-called ’subject’ naturalism, make that move dialectically unavailable to him. I end with a brief sketch of an alternative non-representationalist and anti-metaphysical position.

I seek to show that we do not need norms in a genuinely naturalistic epistemology. The argumentation is launched against a common conception of such norms as derived through a process of wide reflective equilibrium, where one aims to bring general normative statements into accord with concrete, possibly expert, intuitions about particular cases, taking simultaneously into account relevant scientific findings -- including facts about human psychological abilities -- and philosophical theories. According to this line, it is possible thus to arrive at genuine, general normative statements concerning how we should reason. I maintain that such statements are superfluous or illegitimate for several interlocking reasons. The central arguments are i) that certain norms simply repeat the content of descriptive statements which in any case would have to be taken account of in scientific reasoning; ii) if norms are merely meant to systematize an intuitive capacity for reasoning and forming beliefs, we can make do with honing that capacity; iii) there is no reason to regard principles in a psychological reasoning module as norms rather than simply prescursors of behaviour; iv) we cannot make sense of experts in relation to epistemic rationality; v) making play with the idea of purely philosophical constraints on theories of norms involves reneging on naturalism.