The paper argues for realism in quantum mechanics. Specifically, the formalism of quantum mechanics should be understood as giving a complete description of quantum situations. When it is understood in this way, traditional primary properties of matter can be seen as similar to traditional secondary properties, though at a different level.

If a man born blind were to gain his sight in later life would he be able to identify the objects he saw around him? Would he recognise a cube and a globe on the basis of his earlier tactile experiences alone? This was William Molyneux's famous question to John Locke and it was much discussed by English and French empiricists in the eighteenth century as part of the controversy over innatism and abstract ideas. Dr Morgan examines the whole history (...) of this debate: Locke's own (negative) answer to the question, the contributions of Berkeley, Condillac, Diderot and Voltaire and the factual accounts of early cataract operations and modern laboratory studies. He shows how this debate is involved in the development and eventual separation of philosophy and experimental psychology after the eighteenth century and considers why the original question is effectively still unanswered. This is one problem-area with its intricate cluster of connected conceptual and technical difficulties which suggests the need for some reunion or at least collaboration between the two subjects. (shrink)

Many years ago, C.B. Martin drew our attention to the possibility of ‘finkish’ dispositions: dispositions which, if put to the test would not be manifested, but rather would disappear. Thus if x if finkishly disposed to give response r to stimulus s, it is not so that if x were subjected to stimulus r, x would give response z; so finkish dispositions afford a counter‐example to the simplest conditional analysis of dispositions. Martin went on to suggest that finkish dispositions required (...) a theory of primitive causal powers; there, I think, he was mistaken. All that they require is an improved conditional analysis, and this improved analysis can be built upon whatever treatments of properties and of laws we may favour on other grounds. (shrink)

Reid defends the distinction between primary and secondary qualities. He does so in spite of accepting Berkeley’s critique of Locke on this issue and rejecting the Cartesian thesis that the distinction is based on reason. Reid contends that we have a clear, direct, and distinct conception of primary qualities but not of secondary qualities. We shall attempt to explain how Reid could defend the distinction while rejecting the resemblance theory of Locke and the rationalistic theory of Descartes.

A study in the philosophy of science, proposing a strong form of the doctrine of scientific realism' and developing its implications for issues in the philosophy of mind.

A Neurocomputationial Perspective illustrates the fertility of the concepts and data drawn from the study of the brain and of artificial networks that model the...

Two chief problems of the theory of knowledge are the question of meaning and the question of verification. The first question asks under what conditions a sentence has meaning, in the sense of cognitive, factual meaning. The second one asks how we get to know something, how we can find out whether a given sentence is true or false. The second question presupposes the first one. Obviously we must understand a sentence, i.e. we must know its meaning, before we can (...) try to find out whether it is true or not. But, from the point of view of empiricism, there is a still closer connection between the two problems. In a certain sense, there is only one answer to the two questions. If we knew what it would be for a given sentence to be found true then we would know what its meaning is. And if for two sentences the conditions under which we would have to take them as true are the same, then they have the same meaning. Thus the meaning of a sentence is in a certain sense identical with the way we determine its truth or falsehood; and a sentence has meaning only if such a determination is possible. (shrink)

Two chief problems of the theory of knowledge are the question of meaning and the question of verification. The first question asks under what conditions a sentence has meaning, in the sense of cognitive, factual meaning. The second one asks how we get to know something, how we can find out whether a given sentence is true or false. The second question presupposes the first one. Obviously we must understand a sentence, i.e. we must know its meaning, before we can (...) try to find out whether it is true or not. But, from the point of view of empiricism, there is a still closer connection between the two problems. In a certain sense, there is only one answer to the two questions. If we knew what it would be for a given sentence to be found true then we would know what its meaning is. And if for two sentences the conditions under which we would have to take them as true are the same, then they have the same meaning. Thus the meaning of a sentence is in a certain sense identical with the way we determine its truth or falsehood; and a sentence has meaning only if such a determination is possible. (shrink)

'almost every branch of modern science can trace phases of its origin in his writings... in the broad field of science Boyle made a greater number and variety of discoveries than one man is ever likely to make again' - John Fulton, Boyle's bibliographer Robert Boyle (1627-91) was one of the most influential scientists and philosophers of the seventeenth century. The founder of modern chemistry, he headed the movement that turned it from an occult science into a subject well-grounded in (...) experiment, sound methodology and observation. His pioneering experiments on the properties of gases and his mechanistic theory of matter are the forerunners of the modern theories of chemical elements and atomic theory. He is best known for founding the renowned Boyle Lectures and for Boyle's Law that states that the pressure and volume of a gas are inversely proportional. A founding fellow of the Royal Society, three consecutive kings of England conversed familiarly with him. Philosophically, he wrote with sophistication on atheism, atomism, epistemology, miracles and natural laws. He influenced Berkeley, Spinoza, Henry More and especially John Locke, who relied on Boyle's theory of primary and secondary qualities in his Essay Concerning Human Understanding. Boyle's circle of correspondents included Newton, Locke, Aubrey, Oldenburg and Hartlib, and his influence on both British and European scholars was enormous. He also took a lead part in examining the relation of science to theology. This is the standard edition of Boyle's works and the only complete collection currently available. First published in 1772, it brings together his many and varied writings in one comprehensive, fully-indexed source. Covering his work in chemistry, philosophy and theology, it includes a Life of Boyle by Thomas Birch. The Thoemmes reprint of the second and best English edition features a new introduction by Peter Alexander, one of the world authorities on Boyle. --includes a Life of Boyle by Thomas Birch --features letters to and from Boyle --this rare edition is the only complete collected edition currently available and the standard text to which literature on Boyle refers --engraved frontispieces and several fold-out illustrations. (shrink)

Thomas Reid , the Scottish natural and moral philosopher, was one of the founding members of the Aberdeen Philosophical Society and a significant figure in the Scottish Enlightenment. Reid believed that common sense should form the foundation of all philosophical inquiry. He criticised the sceptical philosophy propagated by his fellow Scot David Hume and the Anglo-Irish bishop George Berkeley, who asserted that the external world did not exist outside the human mind. Reid was also critical of the theory of ideas (...) propagated by Locke and Descartes, arguing that it was incompatible with physical and experiential facts. For Reid, our senses demonstrate that the external world must exist, and this work is organised in chapters examining each of the senses in turn. The book, based on his lectures, was first published in 1764 when Reid was a regent professor at King's College, Aberdeen, and was reissued in 1818. (shrink)