John Deely – författare

This book redraws the intellectual map and sets the agenda in philosophy for the next fifty or so years. By making the theory of signs the dominant theme in Four Ages of Understanding, John Deely has produced a history of philosophy that is innovative, original, and complete. The first full-scale demonstration of the centrality of the theory of signs to the history of philosophy, Four Ages of Understanding provides a new vantage point from which to review and reinterpret the development of intellectual culture at the threshold of "globalization".

Deely examines the whole movement of past developments in the history of philosophy in relation to the emergence of contemporary semiotics as the defining moment of Postmodernism. Beginning traditionally with the Pre-Socratic thinkers of early Greece, Deely gives an account of the development of the notion of signs and of the general philosophical problems and themes which give that notion a context through four ages: Ancient philosophy, covering initial Greek thought; the Latin age, philosophy in European civilization from Augustine in the 4th century to Poinsot in the 17th; the Modern period, beginning with Descartes and Locke; and the Postmodern period, beginning with Charles Sanders Peirce and continuing to the present. Reading the complete history of philosophy in light of the theory of the sign allows Deely to address the work of thinkers never before included in a general history, and in particular to overcome the gap between Ockham and Descartes which has characterized the standard treatments heretofore. One of the essential features of the book is the way in which it shows how the theme of signs opens a perspective for seeing the Latin Age from its beginning with Augustine to the work of Poinsot as an indigenous development and organic unity under which all the standard themes of ontology and epistemology find a new resolution and place.

A magisterial general history of philosophy, Deely''s book provides both a strong background to semiotics and a theoretical unity between philosophy''s history and its immediate future. With Four Ages of Understanding Deely sets a new agenda for philosophy as a discipline entering the 21st century.

In his ''Letter on Humanism'' of 1947, Heidegger declared that the subject/object opposition and the terminology that accrues to it had still not been properly addressed in the history of philosophy, and he awaited a proper disquisition that resolved the problem. To date, that has not been provided. This volume explains and solves the prevailing problems in the subjectivity/objectivity couplet, in the process making an indispensable contribution both to semiotics and to philosophy. This book shows that what is thought to be ''objective'' in the commonplace use of the term is demonstrably different from what objectivity entails when it is revealed by semiotic analysis. It demonstrates in its exegesis of the ''objective'' that human existence is frequently governed by examples of a ''purely objective reality'' – a fiction which nevertheless perfuses, is perfused by, and guides experience. The ontology of the sign can be mind-dependent or mind-independent, just as the status of relation can be as legitimate on its own terms whether it is found in ens rationis or in ens reale. The difference in the awareness of human animals consists in this very contextualization that Deely''s writings in general have made so evident: the ability to identify signs as sign relations, and the ability to enact relations on a mind-dependent basis. Purely Objective Reality offers the first sustained and theoretically consistent interrogation of the means by which human understanding of ''reality'' will be instrumental in the survival – or destruction – of planet Earth.

Peirce''s (1906) proposal that the universe as a whole, even if it does not consist exclusively of signs, is yet everywhere perfused with signs, is a thesis that better than any other sums up the life and work of Thomas A. Sebeok, "inventor" of semiotics as we know it today.

Semiotics - the doctrine of signs - has a long and intriguing history that extends back well beyond the last century, two and a half millennia to Hippocrates of Cos. It ranges through the teachings of Augustine, Scholastic philosophy, the work of Peirce and Saussure. Yet a fully-fledged doctrine of signs, with many horizons for the future, was the result of Sebeok''s work in the twentieth century. The massive influence of this work, as well as Sebeok''s convening of semiotic projects and encouragement of a huge number of researchers globally, which, in turn, set in train countless research projects, is difficult to document and has not been assessed until now. This volume, using the testimonies of key witnesses and participants in the semiotic project, offers a picture of how Sebeok, through his development of knowledge of endosemiotics, phytosemiotics, biosemiotics and sociosemiotics, enabled semiotics in general to redraw the boundaries of science and the humanities as well as nature and culture.