There are scientific theories that can be tested only through the use of instruments. Thus, we use, for example, instruments such as microscopes, telescopes, Wilson cloud chambers, and so on, to test theories. This use of instruments in science has been pointed out often by philosophers of science, who then correctly draw the conclusion that what is tested is not so much a single theory T but rather a conjunction.

This paper considers the converse of the principle that ought implies can, namely, the principle that must implies ought. It argues that this principle is the central premiss for Mill's argument that happiness is desirable (worthy of desire), and it examines the sense of must that is relevant and the implications it has for Mill's moral philosophy.

It has been argued that Hume's account of testimony is seriously inadequate: an autonomous knower of the sort Hume defends cannot, through simple inductive methods, justify accepting another's testimony as true. This conclusion is no doubt correct. But Hume does not defend the idea of an autonomous knower, nor does he defend relying upon simple inductive methods. An examination of Hume's critique of Descartes’ method of doubt shows him as a defender of what might be called the responsible knower, and (...) reveals the sophistication of the inductive methods he wishes to defend. It is shown that Hume can and does use these methods to justify accepting the testimony of others. (shrink)

Bergmann has proposed an ontology that contains an entity many find strange: particularity. And in fact, Bergmann, too, seems to find it strange. He proposes a phenomenological method in ontology, and holds, as he therefore should, that particularity is presented. Nonetheless, he also holds that it is ineffable, that its presence in a particular is an unsayable state of affairs, and that it is something which is not a thing and yet is also not nothing. Bergmann’s position has been long (...) developing, but especially in three recent essays. The aim of the present essay is to explore these views. We shall examine Bergmann’s method, and some criticisms of it by Rosenberg, in order to see whether we cannot get a better grasp of particularity. Specifically, we shall try to see whether it is not, after all, effable. It will turn out that this disagreement on the effability of particularity is really three disagreements: one concerning whether a particular can be thought apart from particularity, a second concerning the analysis of intentionality, and a third concerning whether, in the ontologically important sense of ‘different’, entities that are different are separable. (shrink)

John Stuart Mill proposed that all policy precepts, be they in the areas of morality or prudence or aesthetics, are all subordinate to the precepts of the Art of Life. The value which he assumes in defining the Art of Life is the Principle of Utility. This principle, being normative rather than fact, can admit of no proof based solely on deductive inference. Yet Mill proposed considerations that he believed capable of rationally persuading one to accept his principle as the (...) basic principle for the Art of Life. This paper aims to evaluate this argument. In particular, it tries to show that a crucial step, often thought to be a logical howler, is not to be so simply dismissed. It is shown that if one accepts certain theses from Mill's philosophy of science and of social science, concerning the composition of causes, then the crucial step is fully justified. It is also suggested that these theses of Mill's philosophy of science are mistaken. So Mill's proof of utility is, after all, unsound, but the reconstruction proposed shows it to be much more plausible and much more philosophically interesting than is often thought. (shrink)

This paper argues that, contrary to most interpretations, e.g., those of Reid, Popkin and Passmore, Hume is not a sceptic with regard to reason. The argument of Treatise I, IV. i, of course, has a sceptical conclusion with regard to reason, and a somewhat similar point is made by Cleanthes in the Dialogues. This paper argues that the argument of Treatise I, IV. i is parallel to similar arguments in Bentham and Laplace. The latter are, as far as they go, (...) sound, and so is Hume’s. But the limitations of all mean that they cannot sustain a general argument against reason. Hume the historian is quite aware of these limitations. So is Hume the philosopher. A careful examination of the other references in the Treatise to the argument of I, IV. i reveals that Hume not only rejects but constructs a sound case against accepting the sceptical conclusion, arguing that reason can indeed show the sceptic’s argument to be unreasonable. A close reading of the Dialogues shows that Hume there also draws the same conclusion. The thrust of the paper is to go some way towards showing that it is a myth that Hume is a pyrrhonian sceptic. (shrink)

Addis (1981) has criticized a proposal of ours (Wilson [1969b]) for analysing disposition predications in terns of the horseshoe of material implication, and has proposed a related but significantly different analysis. This paper restates the original proposal, and defends it against Addis's criticisms. It is further argued that his proposal will not do as a general account of disposition predications; that, however, if it is suitably qualified, then it does account for certain special sorts of disposition predication; but that so (...) understood, it can be seen to be but a special case of ours. (shrink)

Ferreira outlines Bradley’s account of judgment and perception, and then, towards the end of his essay, indicates the sort of reason that Bradley takes to be an argument in favour of his views. I want to look at that argument, but will first summarize Ferreira’s account of Bradley’s views. This account seems to me to make a very important point about the role of feeling in Bradley’s philosophy, specifically that feeling in Bradley’s ontology/epistemology has a very different status and role (...) from that of the feeling=sensation of the empiricists. The latter is indeed “mere” feeling, from Bradley’s point of view, but that feeling which plays a central role in his own philosophy is anything but mere. (shrink)

The claim that scientific explanation is deductive has been attacked on both systematic and historical grounds. This paper briefly defends the claim against the systematic attack. Essential to this defence is a distinction between perfect and imperfect explanation. This distinction is then used to illuminate the differences and similarities between Aristotelian (anthropomorphic) explanations of certain facts and those of classical mechanics. In particular, it is argued that when one attempts to fit classical mechanics into the Aristotelian framework the latter becomes (...) structurally incoherent. It is suggested that this, together with the fact that classical mechanics embodied the first piece of perfect knowledge, accounts, in part at least, for the historical fact of the rapid demise of the Aristotelian patterns as the new science developed. On the basis of this discussion, the inadequacies of the attack on the deductive model on historical grounds by Toulmin come to be seen. (shrink)

Bergmann has proposed an ontology that contains an entity many find strange: particularity. And in fact, Bergmann, too, seems to find it strange. He proposes a phenomenological method in ontology, and holds, as he therefore should, that particularity is presented. Nonetheless, he also holds that it is ineffable, that its presence in a particular is an unsayable state of affairs, and that it is something which is not a thing and yet is also not nothing. Bergmann’s position has been long (...) developing, but especially in three recent essays. The aim of the present essay is to explore these views. We shall examine Bergmann’s method, and some criticisms of it by Rosenberg, in order to see whether we cannot get a better grasp of particularity. Specifically, we shall try to see whether it is not, after all, effable. It will turn out that this disagreement on the effability of particularity is really three disagreements: one concerning whether a particular can be thought apart from particularity, a second concerning the analysis of intentionality, and a third concerning whether, in the ontologically important sense of ‘different’, entities that are different are separable. (shrink)