The Most Original and Shocking Interpretation of Lucretius in the Last Forty Years, After centuries of abuse by modern atomists and mechanistic materialists, Thomas Nail argues that it is now time to return to De Rerum Natura from the perspective of a new materialism. Nail shows that some of the most important contributions of Lucretius' poem have been completely overlooked or misunderstood. He reinterprets this classical text as an absolutely contemporary one defined by motion and gives us a genuinely new (...) Lucretius - a Lucretius for today. Book jacket. (shrink)

We present $\in_I$-Logic (Epsilon-I-Logic), a non-Fregean intuitionistic logic with a truth predicate and a falsity predicate as intuitionistic negation. $\in_I$ is an extension and intuitionistic generalization of the classical logic $\in_T$ (without quantifiers) designed by Sträter as a theory of truth with propositional self-reference. The intensional semantics of $\in_T$ offers a new solution to semantic paradoxes. In the present paper we introduce an intuitionistic semantics and study some semantic notions in this broader context. Also we enrich the quantifier-free language by (...) the new connective < that expresses reference between statements and yields a finer characterization of intensional models. Our results in the intuitionistic setting lead to a clear distinction between the notion of denotation of a sentence and the here-proposed notion of extension of a sentence (both concepts are equivalent in the classical context). We generalize the Fregean Axiom to an intuitionistic version not valid in $\in_I$. A main result of the paper is the development of several model constructions. We construct intensional models and present a method for the construction of standard models which contain specific (self-)referential propositions. (shrink)

Self-discovery leads to the development of the ethics of self-mastery. Many ethical systems prescribe how the individual could attain self-mastery by means of critical self-examination or self-analysis. Once such critical self-examination or self-analysis is successfully carried out, the individual begins to use himself, his personal preferences, as the standard of what is right or wrong. This is the background to the Confucian, Kantian and Existentialist ethics of categorical imperatives. Even in religious ethical systems that attribute the source of the moral (...) law to divine authority, the individual still has to take a leap of faith to discover God's purpose for his existence, which he then internalizes. In the final analysis, any ethics that truly works must issue forth from the self. Hence self-mastery is the absolutely fundamental premise upon which to erect a sound moral character. (shrink)

Self-discovery leads to the development of the ethics of self-mastery. Many ethical systems prescribe how the individual could attain self-mastery by means of critical self-examination or self-analysis. Once such critical self-examination or self-analysis is successfully carried out, the individual begins to use himself, his personal preferences, as the standard of what is right or wrong. This is the background to the Confucian, Kantian and Existentialist ethics of categorical imperatives. Even in religious ethical systems that attribute the source of the moral (...) law to divine authority, the individual still has to take a leap of faith to discover God's purpose for his existence, which he then internalizes. In the final analysis, any ethics that truly works must issue forth from the self. Hence self-mastery is the absolutely fundamental premise upon which to erect a sound moral character. (shrink)

"In this essay, I wish to question the view that the distinction between medieval and early modern philosophy is primarily one of method. I shall argue that what has come to be known as the modern method in fact owes much to the natural philosophy of John Buridan (ca. 1295-1361), a secular arts master who taught at the University of Paris some three centuries before Descartes. Surrounded by conflicts over institutional governance and curricular disputes, Buridan emerged as a forceful voice (...) for the independence and autonomy of teachers in the faculty of arts, arguing that philosophy as properly practiced belonged to them, the "artists artistae", not to those who taught in the so-called 'higher' faculties of theology, law, and medicine. Now such voices had been heard before at Paris, most notably from Averroist arts masters in the late 13th and early 14th-centuries.(*) Buridan is different, however, because unlike Boethius of Dacia and John of Jandun, he knew how to make the case for artistic autonomy without denigrating the theology and thereby inviting official condemnation. His trick was not to argue that there are 'two truths', one acquired and the other revealed, which might well come into conflict with each other, or that propositions whose truth has been revealed in scripture in no way qualify as scientia. It was rather to recognize the profoundly different methods of theology and philosophy, without losing sight of the fact that what counts as evidence in a proof in natural philosophy does not work in a theological argument, even if both have the same conclusion, such as that the human soul is immortal. Buridan seems to think that if only people would respect the differences between the rules of philosophical and theological inquiry, no conflicts would arise. He is not so naive as to claim this could ever happen, of course. But it does explain why he almost always diagnoses such conflicts in terms of some logical or linguistic confusion on the part of the people who propose them. Buridan is also different because in him the secularizing sentiment already present in the Latin Averroists begins to take shape as a way of doing philosophy, i.e., as a philosophical grammar.. (shrink)

This article introduces an intuitive conservation dilemma called the Canyon Dilemma: Is it possible to condemn the mining of the Grand Canyon, even by a poor generation, while also permitting this generation’s mining of an unremarkable small canyon? It then argues that not one of several prominent theories of environmental justice, including various forms of egalitarianism, welfarism, deep-ecological theories, communitarianism and free-market environmentalism, can navigate this dilemma. The article concludes by highlighting the dilemma-navigating potential of the equal-claims idea – the (...) idea that the natural world is something to which every human being, present and future, has an equal, substantive claim. (shrink)

This is the introductory installment in a projected series of articles in which I shall be advancing the positive case for the "intrinsic" kind of explanatory account of "consciousness4." "Consciousness4" has reference to a property of individual mental-occurrence instances wherein there takes place an immediate awareness of them either upon their occurrence or as part of their very occurrence. The immediacy or directness of such inner awareness amounts to the absence of mental mediation by any other occurrent awareness. An account (...) of consciousness4 that properly comes under the heading of "intrinsic theory" is distinguished by the thesis that a mental-occurrence instance’s being conscious4 is an intrinsic property, rather than an external-relational property of that mental-occurrence instance. My hope for the present series of articles is that, by the end, the case for intrinsic theory will he so evidently strong, or at least so vivid, that all psychologists of consciousness will have to address intrinsic theory and its explanandum of consciousness4. In this article, I set the stage by rendering some of the relevant meanings explicit, spelling out my purpose and approach to making the case for intrinsic theory, providing some context for the discussions to follow, and mentioning important objections to intrinsic theory that have been voiced in the literature. (shrink)

One of the most thankless tasks in the field of the philosophy of science is the arranging of the sciences. If philosophy is to fulfill the partial rôle of being the “science of the sciences” it is sure to return to this undertaking time and time again. Sometimes it will refer to the enterprise as “the classification of the sciences,” sometimes as the formulation of “the system of the sciences,” and occasionally in the grand manner as a description of the (...) “order of Nature.” I prefer to speak of “arranging” the sciences. (shrink)

The text of Theaetetus 155b1-2 as recorded in the manuscripts and printed in current editions of the dialogue is marked by a syntactical anomaly (ἀλλά postpositum) and a logical non sequitur (arbitrary transition from a copulative to an existential use of εἷναι and vice versa). Attempts at emendation by Proclus, Stephanus and Campbell have all been unsuccessful. To find the way back to Plato's original text, the reader will have to fight his way through a logical tangle (the result of (...) a double negation) and abandon the modish, but erroneous, belief that there is no difference in ancient Greek between ``complete'' and ``incomplete'' uses of εἷναι. (shrink)