The author argues that there is a sharp contrast between Plato's earlier teleological explanation of nature and his later conception. In the Phaedo Anaxagoras' νοṽς as a teleological principle is rejected, the forms taking its place, in the Philebus the existence of a νοṽς explaining order and finality in nature, is strictly demonstrated. After that nature and consequences of this new doctrine are briefly discussed : the ineffable character of the transcendent cause of the world ; the reduction of the (...) number of the Forms to those of substances in nature ; the causality of νοṽς as an immanent and intermediate one ; the foundation of a mathematical science of nature. Thirdly the author makes an effort to reconstruct the philosophical grounds of this development, starting from the three theses, on which the argumentation of the Philebus is based. 1) νοṽς can only exist in a soul. It is argued that the dynamic conception of soul in the Phaedrus logically leads to the conclusion, that νοṽς also is movement . 2) To explain cosmic order and finality a νοṽς has to be accepted. This new idea occurs for the first time in the Sophistes and in the myth of the Politicus. 3) Cosmic order has a mathematical and astronomical character. This aspect is absent before the Philebus and seems to have been a consequence of Plato's discovery of the regularity in the planitary motions . Finally the author thinks he can indicate in the Sophistes the turning-point in the theory of Forms, as a result of the extension of the notion of being. (shrink)

The subject of this study is the relation between dialectic and dialogue. First an attempt is made to delineate a universe of discourse 'communication'. Mutual acknowledgement as a subject ('intersubjectivity') is proposed as a distinctive characteristic of the concept of dialogue, and a distinction is made between several classes of dialogue (see the diagram). Then the concept of dialectic is examined. Special attention is paid to the question what is to be understood by the term 'modern dialectical thinking' (from Fichte (...) onwards). Because it seems impossible to describe dialectic as a method in a methodical way, or to find some one characteristic common to such divergent dialectical philosophies as those of Fichte, Hegel, Marx, Engels, Marxism-Leninism and various forms of Neo-Marxism (L. Goldmann, Th. Adorno, E. Bloch), the proposal is made to stipulate that the terms dialectic, dialectical method and dialectical thinking in the modern sense should only be used when negation and/or contrast (in a specific sense, peculiar to the thinkers mentioned) characterize a mode of thinking in a more or less systematic way. After these preliminaries the relation between dialogue and dialectic is examined as it presents itself from an historical point of view. As regards Plato, it is contended that his dialektikê technê neither constitutes a dialogal philosophy, nor a dialogic (theory of the dialogue). His 'dialogues' rather are an instance of the 'literary dialogue' (with agogic intentions). Hegel's way of thinking is characterized as monological and speculative. Though his conception of thought as a process, as well historical as collective, does not logically exclude a dialogue, his attitude towards it seems to be rather cool (or at least ambiguous). With Marx the concept of the class struggle enters the dialectic and this concept is essentially inimical to the concept of the dialogue as a peaceful means of solving conflicts. In Marxism-Leninism the distinction between antagonistic and non-antagonistic contradictions (necessitated by the universalization of the dialectic by Engels and the Russian pretension of having founded the socialist state) implies the view that only in socialist and communist societies fundamental contradictions are absent and that consequently only within these societies there is no need for non-peaceful means of solving conflicts. In the thought of Th. Adorno, M. Horkheimer and H. Marcuse there seems to be no room for a dialogue, as a consequence of the Utopian implications of their concept of negation. Only in J. Habermas we meet with a positive attitude towards the (social-practical) dialogue. For him the dialogue even is 'the normative foundation' of his 'critical theory' of society. Dialectic is seen by him as a consequence of a repression of the dialogue (and so the dialogue as an antidote against the dialectic of ‘Verdinglichung’). The main conclusion drawn from this historical survey is that, as far as modern dialectical thinking is concerned, dialectic exhibits an antithetic relation towards the concept of dialogue generally, and more specifically towards the 'social-practical dialogue'. With all these thinkers a positive attitude towards dialectical thinking de facto implies a negative evaluation of the dialogue (or at least coolness towards it), or conversely (Habermas). Finally the author presents some considerations of a more general nature: that dialectic and dialogue are not to be considered correlative concepts, because contrasting opinion (not dialectic) is a sufficient condition for the dialogue; that the startingpoint for a social-practical dialogue may be found in the concept of 'problematic situations related to generally accepted ends' (such as e.g. well-being); that the socialpractical dialogue is directed at a consensus indeed, at least directly, but that this does not prevent it from being directed indirectly at the truth; that the concept of synthesis constitutes the normative foundation of the dialogue, because the ideal consensus consists in a synthesis of contrasting points of view. (shrink)

After some preliminaries concerning the original character of Rawls's formulation of the problem of social justice the author discusses the question, whether the proposed principles of justice for the basic structure of society bear the marks of a liberal theory.The conclusion of this part (IA) is that Rawls seems to have in view a mixed society, or perhaps rather a society which transcends the contrast between liberalism and socialism.Some critics have ascribed to Rawls the view of man of classical liberalism (...) and for this reason have considered him a liberal. The author contends that these critics do not seem to have grasped the purely methodological significance of the concept of the original position. After some preliminaries concerning the original character of Rawls's formulation of the problem of social justice the author discusses the question, whether the proposed principles of justice for the basic structure of society bear the marks of a liberal theory.The conclusion of this part (IA) is that Rawls seems to have in view a mixed society, or perhaps rather a society which transcends the contrast between liberalism and socialism.Some critics have ascribed to Rawls the view of man of classical liberalism and for this reason have considered him a liberal. The author contends that these critics do not seem to have grasped the purely methodological significance of the concept of the original position. After a short interlude in which the conceptions of justice of Marx and Rawls are compared (IB) the author presents some considerations of a critical nature as regards the principles of justice (IC). The distinction between the general and the special conception of justice hinges on the lixical priority of freedom. Now, a contradiction seems to emerge between the fact that the choice in favor of the special conception is an absolute one, valid for all societies regardless of time and place, and the fact that the general conception is sometimes presented as a first phase in the evolution of a well-ordered society (sect.82). This is an indication that in Rawl's theory the priority of freedom is not as absolute as he thinks it to be. The decisive point in this respect seems to be the fact that the „fair value of liberty” (Sect. 36) would demand that a subsistence minimum is lexically prior to freedom. These seem to be serious inconsistencies for which nnno remedy can be found and which are apt to lead us back to „instuitionism” The author considers next (and this is his main point) the logical structure of Rawls's contract theory, which in his opinion stands in urgent need of clarification. It is argued that the concept of contract as such implies a certain indifference or indeterminateness as regards its result. At the other hand, the result (that which is agreed upon, i.e. the principles of justice) is ex hypothesi considered to explain „our considered judgements” in reflective equilibrium. In this way it appears that Rawl's central idea (rather implicitly) is : there exists a consensus as regards our considered judgements concerning justice and this consensus may be explained as resulting from a (hypothetical) contract. So the argument really is of a hypothetico-deductive nature and it would have been much better if Rawls had been clear about it himself. Some critical considerations follow. First attention is paid to the fact that strict observance is an essential element of the concept of contract and that from this point of view the three psychological laws (chapt. VIII) are of crucial importance to the theory. Their nature, however, is not altogether clear. They are neither empirical laws (because they presuppose a just institutional structure and a just society is said not to exist), nor are they a priori ones. So it is only left for us to say that they are construed as empirical laws. Now, the difficulty for Rawls with this must be that reliance on such laws is inconsistent with the rationality of the parties in the original position, because as a matter of fact these laws have not been tested empirically (the fact that they can not be tested in this way makes no difference at all). Secondly it is asked whether we are dealing with a contract doctrine at all. Starting from the question, whether in this theory the notion of contract (intended to explain our considered judgements as givens) really is an ultimate explanatory concept, it is argued that there are some anthropological presuppositions, which rather point in the direction of a theory of self-realization. This seems to be confirmed by some other features of the theory, e. g. the Aristotelian principle, the Kantian interpretation, the concept of natural rights, and society as a social union of social unions. In conclusion, neither Rawls's principles of justice nor his contract theory are sufficiently consistent to escape the need of reconsideration. (shrink)

This book brings together some of the best minds in neurology and philosophy to discuss the concept of personal identity and the moral dimensions of treating ...

A total of 944 expressed sequence tags generated 2212 EST loci mapped to homoeologous group 1 chromosomes in hexaploid wheat. EST deletion maps and the consensus map of group 1 chromosomes were constructed to show EST distribution. EST loci were unevenly distributed among chromosomes 1A, 1B, and ID with 660, 826, and 726, respectively. The number of EST loci was greater on the long arms than on the short arms for all three chromosomes. The distribution of ESTs along chromosome arms (...) was nonrandom with EST clusters occurring in the distal regions of short arms and middle regions of long arms. Duplications of group 1 ESTs in other homoeologous groups occurred at a rate of 35.5%. Seventy-five percent of wheat chromosome 1 ESTs had significant matches with rice sequences, where large regions of conservation occurred between wheat consensus chromosome 1 and rice chromosome 5 and between the proximal portion of the long arm of wheat consensus chromosome 1 and rice chromosome 10. Only 9.5% of group 1 ESTs showed significant matches to Arabidopsis genome sequences. The results presented are useful for gene mapping and evolutionary and comparative genomics of grasses. (shrink)

A naturalistic theory of intentionality is proposed that differs from previous evolutionary and tracking theories. Full-blown intentionality is constructed through a series of evolvable refinements. A first, minimal version of intentionality originates from a conjectured internal process that estimates an organism’s own fitness and that continually modifies the organism. This process produces the directedness of intentionality. The internal estimator can be parsed into intentional components that point to components of the process that produces fitness. It is argued that such intentional (...) components can point to mistaken or non-existing entities. Different Fregian senses of the same reference correspond to different components that have different roles in the estimator. Intentional components that point to intentional components in other organisms produce directedness towards semi-abstract entities. Finally, adding a general, population-wide means of communication enables intentional components that point to fully abstract entities. Intentionality thus naturalized has all of its expected properties: being directed; potentially making errors; possibly pointing to non-existent, abstract, or rigid entities; capable of pointing many-to-one and one-to-many; distinguishing sense and reference; having perspective and grain; and having determinate content. Several examples, such as ‘swampman’ and ‘brain-in-a-vat’, illustrate how the theory can be applied. (shrink)

A number of recent books and articles have defended the concept of de re modality. Although Slote makes some contributions toward its defense, he is mainly concerned with using de re modality to provide analyses of key concepts in metaphysics, including "process", "event", "change", "physical body", "self", "future", "past", "fact", and "state of affairs". Each concept is defined by essence and accident, that is, by specifying what is either accidental or essential to the entities covered by the concept. Such definitions (...) focus on the ontological relationships of exact similarity, necessary coexistence, and logical dependence. They provide the necessary existence conditions for processes, events, selves, etc. These existence conditions are a major concern in metaphysical questions about the relationship between psychic and physical existence, selves and their experiences, and things and their alterations. Thus Slote provides an important analytical procedure for this type of metaphysical problem. (shrink)

Feedback control in neural systems is ubiquitous. Here we study the mathematics of nonlinear feedback control. We compare models in which the input is multiplied by a dynamic gain (multiplicative control) with models in which the input is divided by a dynamic attenuation (divisive control). The gain signal (resp. the attenuation signal) is obtained through a concatenation of an instantaneous nonlinearity and a linear low-pass filter operating on the output of the feedback loop. For input steps, the dynamics of gain (...) and attenuation can be very different, depending on the mathematical form of the nonlinearity and the ordering of the nonlinearity and the filtering in the feedback loop. Further, the dynamics of feedback control can be strongly asymmetrical for increment versus decrement steps of the input. Nevertheless, for each of the models studied, the nonlinearity in the feedback loop can be chosen such that immediately after an input step, the dynamics of feedback control is symmetric with respect to increments versus decrements. Finally, we study the dynamics of the output of the control loops and find conditions under which overshoots and undershoots of the output relative to the steady-state output occur when the models are stimulated with low-pass filtered steps. For small steps at the input, overshoots and undershoots of the output do not occur when the filtering in the control path is faster than the low-pass filtering at the input. For large steps at the input, however, results depend on the model, and for some of the models, multiple overshoots and undershoots can occur even with a fast control path. (shrink)

Tragic allusions to contemporary events are not, as a rule, taken on trust, but the Eumenides of Aeschylus provides three notable exceptions. The view that the Athenian-Argive alliance of 462 B.C. is reflected in Eum. 287–91, 667–73, anc^ 762–74 has won wide acceptance, although no systematic theory of the relation between the drama and the historical context has yet been advanced. If demonstration in detail has been wanting, the view seems to be supported by three general considerations. In the first (...) place, the emphasis put on the dramatic declaration of friendship exceeds the requirements of the plot: the acquittal of Orestes rather than his gesture of gratitude to Athens is the natural climax of this part of the drama, 1–777, and yet the gesture has been considered important enough to be heralded twice before it is actually made in 762–74. Secondly, Orestes' declaration is not limited in duration but binding on his successors in perpetuity; it seems, therefore, to have been deliberately formulated in order to react upon historical fact. Thirdly, in instituting the Council of the Areopagus and dwelling upon the importance of its constitutional function , Aeschylus seems to have gone out of his way to pass judgement of some sort on the recent reforms of Ephialtes and Pericles; the theory that he has also appreciated their foreign policy on the tragic stage is thus relieved of some of the obvious practical objections and made inherently more plausible. (shrink)

Tragic allusions to contemporary events are not, as a rule, taken on trust, but the Eumenides of Aeschylus provides three notable exceptions. The view that the Athenian-Argive alliance of 462 B.C. is reflected in Eum. 287–91, 667–73, anc^ 762–74 has won wide acceptance, although no systematic theory of the relation between the drama and the historical context has yet been advanced. If demonstration in detail has been wanting, the view seems to be supported by three general considerations. In the first (...) place, the emphasis put on the dramatic declaration of friendship exceeds the requirements of the plot: the acquittal of Orestes rather than his gesture of gratitude to Athens is the natural climax of this part of the drama, 1–777, and yet the gesture has been considered important enough to be heralded twice before it is actually made in 762–74. Secondly, Orestes' declaration is not limited in duration but binding on his successors in perpetuity; it seems, therefore, to have been deliberately formulated in order to react upon historical fact. Thirdly, in instituting the Council of the Areopagus and dwelling upon the importance of its constitutional function, Aeschylus seems to have gone out of his way to pass judgement of some sort on the recent reforms of Ephialtes and Pericles; the theory that he has also appreciated their foreign policy on the tragic stage is thus relieved of some of the obvious practical objections and made inherently more plausible. (shrink)

My object in this paper is to suggest a few reflections on some themes in Bentham's work which others as well as I have noted, without perhaps developing them as fully as might with advantage be done. There will be nothing like full development in the limited compass of what is said here, but what is said may at least indicate possible directions for further exploration. The greater part of the paper will be concerned with the notion of natural authority; (...) but I want to begin by taking a broader, though no doubt rather superficial, view of the role in Bentham's thinking of the concepts of ‘nature’ and ‘the natural’. (shrink)

The object of this article is to examine, with the work of Jeremy Bentham as the principal example, one strand in the complex pattern of European social theory during the second half of the eighteenth century. This was of course the period not only of the American and French revolutions, but of the culmination of the movements of thought constituting what we know as the Enlightenment. Like all great historical episodes, the Enlightenment was both the fulfilment of long-established processes and (...) the inauguration of new processes of which the fulfilment lay in the future. Thus the seminal ideas of seventeenth-century rationalism realized and perhaps exhausted their potentialities in the eighteenth-century Enlightenment. The ideas with which this article is concerned, however—conveniently grouped and labelled as the ideas of utilitarianism—only began to achieve systematic development in these later decades of the eighteenth century. Within that period—during the first half and more of Bentham's long life—attempts to apply those ideas to the solution of social problems met largely with failure and frustration. Yet unrealized potentialities remained, the realization of which was reserved for a time when the world of the philosophes no longer existed. The movements for social and political reform which have played so large a part in modern history since the French Revolution may be judged in widely differing ways; but whatever the verdict, these movements surely cannot be understood without due consideration of that part of their origins which lies in eighteenth-century utilitarianism. (shrink)