This article reviews the seven “visions” of evolution proposed by Depew and Weber , concluding that each posited relationship between natural selection and self-organization has suited different aims and approaches. In the second section of the article, we show that these seven viewpoints may be collapsed into three fundamentally different ones: natural selection drives evolution; self-organization drives evolution; and natural selection and self-organization are complementary aspects of the evolutionary process. We then argue that these three approaches are not mutually exclusive, (...) since each may apply to different stages of development of different systems. What emerges from our discussion is a more encompassing view: that self-organization proposes what natural selection disposes. (shrink)

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)

Originally published in 1993. This book presents an amended version of R.D. Hick's classic translation of Aristotle's "De Anima" Books 2 and 3, with pertinent extracts from Book 1, together with an introduction and six papers by prominent international Aristotelian scholars. The editor brings together up-to-date discussions of Aristotle's "De Anima", examining central topics such as the nature of perception, perception and thought, thinking and the intellect, the nature of the soul and the relation between body and soul. These papers (...) draw attention to the importance and value of Aristotle's original contributions both to these topics and to philosophical psychology in general. They show the relevance of Aristotle's ancient classical philosophy to contemporary philosophical debate. This book also examines the key issues of Aristotle's thesis and aims to demonstrate its enduring significance. The "De Anima" is placed within a wider Aristotelian framework, and also within a more comprehensive structure, as a contribution to philosophical development and advance. (shrink)