Stuart Kauffman here presents a brilliant new paradigm for evolutionary biology, one that extends the basic concepts of Darwinian evolution to accommodate recent findings and perspectives from the fields of biology, physics, chemistry and mathematics. The book drives to the heart of the exciting debate on the origins of life and maintenance of order in complex biological systems. It focuses on the concept of self-organization: the spontaneous emergence of order widely observed throughout nature. Kauffman here argues that self-organization plays an (...) important role in the emergence of life itself and may play as fundamental a role in shaping life's subsequent evolution as does the Darwinian process of natural selection. Yet until now no systematic effort has been made to incorporate the concept of self-organization into evolutionary theory. The construction requirements which permit complex systems to adapt remain poorly understood, as is the extent to which selection itself can yield systems able to adapt more successfully. This book explores these themes. It shows how complex systems, contrary to expectations, can spontaneously exhibit stunning degrees of order, and how this order, in turn, is essential for understanding the emergence and development of life on Earth. Topics include the new biotechnology of applied molecular evolution, with its important implications for developing new drugs and vaccines; the balance between order and chaos observed in many naturally occurring systems; new insights concerning the predictive power of statistical mechanics in biology; and other major issues. Indeed, the approaches investigated here may prove to be the new center around which biologicalscience itself will evolve. The work is written for all those interested in the cutting edge of research in the life sciences. (shrink)

This paper defends the view that homosexuality is abnormal and hence undesirable—not because it is immoral or sinful, or because it weakens society or hampers evolutionary development, but for a purely mechanical reason. It is a misuse of bodily parts. Clear empirical sense attaches to the idea of the use of such bodily parts as genitals, the idea that they are for something, and consequently to the idea of their misuse. I argue on grounds involving natural selection that misuse of (...) bodily parts can with high probability be connected to unhappiness. I regard these matters as prolegomena to such policy issues as the rights of homosexuals, the rights of those desiring not to associate with homosexuals, and legislation concerning homosexuality, issues which I shall not discuss systematically here. However, I do in the last section draw a seemingly evident corollary from my view that homosexuality is abnormal and likely to lead to unhappiness. (shrink)

Most philosophy professors want to help their students improve their writing, but determining a good way to do so is not easy. Requiring students to write rough drafts is a good start, but the extra work these require can overload already busy professors. In this article I describe and defend the use of peer-review assignments as a way of improving undergraduate writing. The largest benefit of such assignments is that they allow the students to take a more objective view of (...) their own writing. I also provide sample questionsto use in such assignments. (shrink)

Tens of thousands of students have learned to be more discerning at constructing and evaluating arguments with the help of Patrick J. Hurley. Hurley’s lucid, friendly, yet thorough presentation has made A CONCISE INTRODUCTION TO LOGIC the most widely used logic text in North America. In addition, the book’s accompanying technological resources, such as CengageNOW and Learning Logic, include interactive exercises as well as video and audio clips to reinforce what you read in the book and hear in class. In (...) short, you’ll have all the assistance you need to become a more logical thinker and communicator. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version. (shrink)

The book also comes with an exhaustive array of study aids that enable the reader to monitor and enhance the learning process.

Some scholars attempt to explain sexual desire biologically by claiming that sex hormones play a necessary causal role in sexual desire. This can be claimed even if sexual desire is seen to be an experience. Yet the evidence for such biological essentialism is inadequate. With males the loss of sexual desire following hormonal changes can easily be explained in terms of social stigmas that are attached to the physiological situation. Concerning females, the relevance of sex hormones here is even more (...) unclear. Although some women seem to have fluctuations in sexual desire during hormonal changes, other women do not. Even where there are such fluctuations these can be explained by responses to other physiological changes or the meanings that are attached to the situation. Research with non-human primates supports this view of the non-essential relation of sex hormones to sexual desire. A phenomenology of sex hormones is given that shows a possible non-essential relation between sex hormones and sexual desire. Here hormone induced excitations in the genitals may or may not lead to sexual desire depending on the meaning they are given within awareness. This suggests that sexual desire has its origin in the meanings we give our biology and not in our biology itself. (shrink)

This article has two broad purposes. First, as a political philosopher who has been interested in the concepts of coercion and exploitation, I want to consider just what the analysis of the concept of consent can bring to the question, what sexually motivated behavior should be prohibited through the criminal law? Put simply, I shall argue that conceptual analysis will be of little help. Second, and with somewhat fewer professional credentials, I shall offer some thoughts about the substantive question itself. (...) Among other things, I will argue that it is a mistake to think that sexual crimes are about violence rather than sex and that we need to understand just why the violation of sexual autonomy is a serious wrong. I shall also argue that the principle that “no means no” does not tell us when “yes means yes,” and that it is the latter question that poses the most interesting theoretical difficulties about coercion, misrepresentation, and competence. In addition, I shall make some brief remarks concerning two questions about consent and sexual relations that lie beyond the criminal law: What “consent compromising behaviors” should be regarded as indecent, although not criminal? When should someone consent to sexual relations within an enduring relationship? (shrink)

Almost all of us have entered or will one day enter a specifically standardized form of monogamous marriage. This cultural requirement is so very basic to our existence that we accept it for most part as a kind of intractable given: dictated by the laws of God, Nature, Government and Good Sense all at once. Though it is perhaps unusual for a social practice to be so promiscuously underwritten, we generally find comfort rather than curiosity in this fact and seldom (...) wonder how something could be divinely inspired, biologically determined, coerced and reasoned out all at the same time. We simply take for granted. (shrink)

The liberal view that valid consent is sufficient for a sex act to be morally legitimate is challenged by three major philosophies of sex: the Catholic view of sex as ordained for procreation and properly confined to marriage, the romantic view of sex as bound up with love, and the radical feminist analysis of sex in our society as part and parcel of the domination of women by men. I take a critical look at all three, focusing on Mary Geach''s (...) recent statement of the procreation view, Roger Scruton''s theory of sexual desire as naturally evolving into intimacy and love, and several radical feminist discussions of sex in sexist society which argue that the notion of consent is unhelpful and, indeed, irrelevant. I argue that none of these lines of argument is convincing, and that consent remains the touchstone of morally permissible sex – although, dmittedly, it may not be very helpful in discussing ideals of human sexuality. (shrink)

Designed for students with no prior training in logic, INTRODUCTION TO LOGIC AND CRITICAL THINKING offers an accessible treatment of logic that enhances understanding of reasoning in everyday life. The text begins with an introduction to arguments. After some linguistic preliminaries, the text presents a detailed analysis of inductive reasoning and associated fallacies. This order of presentation helps to motivate the use of formal methods in the subsequent sections on deductive logic and fallacies. Lively and straightforward prose assists students in (...) gaining facility with the sometimes challenging concepts of logic. By combining a sensitive treatment of ordinary language arguments with a simple but rigorous exposition of basic principles of logic, the text develops students' understanding of the relationships between logic and language, and strengthens their skills in critical thinking. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version. (shrink)

Human beings talk and co-operate, they build and produce, they work to accumulate and exchange, they form societies, laws and institutions, and, in all these things the phenomenon of reason—as a distinct principle of activity—seems dominant. There are indeed theories of the human which describe this or that activity as central—speech, say, productive labour (Marx), or political existence (Aristotle). But we feel that the persuasiveness of such theories depends upon whether the activity in question is an expression of the deeper (...) essence, reason itself, which all human behaviour displays. (shrink)