Struan Jacobs

It is a testimony to the enduring importance of Thomas Kuhn's The Structure of Scientific Revolutions that, 30 years on, its doctrines of normal science and paradigm, incommensurability and revolution continue to challenge metascien tists and stimulate vigorous debate. Critique has mainly come from philosophers and historians; by and large, interested sociologists have embraced Kuhn. Un justifiably so, this article argues, bringing to light a serious difficulty or anom aly in his account of the social side of science. Contrary to what he claims, scientific knowledge is not the achievement of organic communities. It is con structed in trans-epistemic arenas by diverse participants, laypeople, and specialists. Accepting community is a flawed concept in the sociology of science, and in appreciating the major role Kuhn assigned it, the Kuhnian system looks less robust than it did before.

Born in 1918 in New York, awarded a doctorate in analytical chemistry (1944), Leonard K. Nash enjoyed a distinguished career at Harvard, holding a chair of chemistry from 1959 to 1986. Conducting research in thermodynamics and statistical mechanics, Nash authored successful textbooks, some of which remain in print (e.g. Elements of Chemical Thermodynamics, and Elements of Statistical Thermodynamics).This essay describes the theory of science that Nash developed in a book he published in 1963, The Nature of the Natural Sciences. The present author is of the view that Nash's neglected theory is worth retrieving, as one that is likely to kindle the interest of historians of metascience on several counts. Part of ..

It has been said that Robert Boyle gave in the century of The Scientific Revolution the “fullest expression” of the view that laws of nature are continually impressed by God (“occasionalism”). So regarded, the universe is anything but an autonomous machine, its ordered operation depending on God’s continuous imposition of lawful, patterned relations between phenomena and his continuous provision of motion for them to actually enter relations. The present paper contests this treatment of Boyle. Evidence is elicited to show that, for Boyle, most physical relations issue from intrinsic dispositions of phenomena, not divine impositions, dispositions determined by corpuscular textures. Members of classes of phenomena have capacities to make specific changes which members of other classes have capacities to receive, these correlative capacities being necessarily connected, subjects in principle of a priori synthetic necessary knowledge. The same view is found in John Locke’s Essay Concerning Human Understanding. It is additionally argued that Boyle’s God, the quintessentially active being, imparted motion at the creation, whereafter the motion of (at least most) natural phenomena has derived from natural, not supernatural, impulsion.

John Gray's recent critique of liberalism, and his case for an apparently relativistic “post‐Pyrrhonian”; political philosophy, are shown to be wanting. Weaknesses in Gray's critique are identified and discussed: the characterization of liberalism as universally prescriptive, confusion about whether liberalism is a genuine tradition, and misunderstanding of the relation between conduct and the value of freedom. A formulation of liberalism that is not universalist ("temperate”; liberalism) is offered, and it is shown that one of liberalism's vital concerns—controlling political power in order to protect freedom — is a hiatus in Gray's theory.

Edward Shils presented his book Tradition (1981) as the first extensive study of the subject. This article casts light on Shils' multifaceted understanding of tradition, comprising pragmatic, Burkean, veridical, and evolutionist perspectives. His typology of traditions is noted, and his view of institutional bearers of tradition described. In assessing Shils' theory, however, we find that it overreaches, collapsing differences that exist between traditions, transmissions, and the traditional. Key Words: tradition • transmission • rationalization • antitradition • science.

How did Karl Popper arrive at his theory of science? Popper believed that Einstein’s general theory of relativity and his attitudes of modesty and self-criticism were all important.This paper challenges details in Popper’s account and suggests an alternative interpretation of the formation of his theory. It is held that his disillusionment with Marxism predated and conditioned his understanding of Einstein, and that the liberalism of J. S. Mill may have exercised an influence. Political ideas and practice paved the way for Popper’s philosophy of science.

This paper compares Hayek and Polanyi on spontaneous social order. Although Hayek is widely believed to have first both coined the name and explicated the idea of ?spontaneous order?, it is in fact Michael Polanyi who did so. Numerous differences emerge between the two thinkers. The characterisation of spontaneous order in Hayek, for example, involves different types of freedom to those advanced by Polanyi. Whereas Hayek (usually) portrays spontaneous order as a single entity, which is equivalent to free society as a whole ? the free?catallactic society ? Polanyi by contrast is disposed to conceive of spontaneous orders as sub?units or components within free society as a whole. These and other aspects of their thought ? including the distinction between spontaneous and planned social orders ? are reviewed and criticised

Celebrated as a theorist of science, and a source of stimulating ideas for theologians and philosophers of religion, Michael Polanyi explicitly denied cognitive relativism. Yet cognitive relativism, this paper suggests, is implied by Polanyi's account of conceptual frameworks and intellectual controversies.In ‘The Stability of Beliefs’ Polanyi understands conceptual frameworks as embedded in, and as expressed in the use of, their own languages. The language‐with‐theory limits the range of discussable subjects, interprets relevant facts in its own terms, permits only certain questions to be asked, with answers to these questions serving to confirm the framework.In Polanyi's masterwork, Personal Knowledge , these ideas inform his discussion of controversies over scientific frameworks and frameworks vying to become part of science. In each controversy, frameworks are logically disconnected, Polanyi foreshadowing the incommensurability thesisI argue that Polanyi's ideas satisfy recognised criteria of cognitive relativism. Perception is undetermined by objects and conditioned by language. Empirical propositions, in Polanyi's view, are accepted as true only within a conceptual framework. Polanyi regards supporters of logically disconnected frameworks as thinking differently, living in different worlds, speaking different languages and as experiencing communication failure. There is no framework‐independent argument or evidence to distinguish any framework as the best available approximation to the truth. Frameworks are logically disconnected and incommensurable