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Books > Humanities > Philosophy > Western philosophy > Western philosophy, c 500 to c 1600

The Cambridge Companion to Medieval Ethics (Paperback): Thomas Williams The Cambridge Companion to Medieval Ethics (Paperback)
Thomas Williams
R932 Discovery Miles 9 320 Ships in 12 - 17 working days

Ethics was a central preoccupation of medieval philosophers, and medieval ethical thought is rich, diverse, and inventive. Yet standard histories of ethics often skip quickly over the medievals, and histories of medieval philosophy often fail to do justice to the centrality of ethical concerns in medieval thought. This volume presents the full range of medieval ethics in Christian, Islamic, and Jewish philosophy in a way that is accessible to a non-specialist and reveals the liveliness and sophistication of medieval ethical thought. In Part I there is a series of historical chapters presenting developmental and contextual accounts of Christian, Islamic, and Jewish ethics. Part II offers topical chapters on such central themes as happiness, virtue, law, and freedom, as well as on less-studied aspects of medieval ethics such as economic ethics, the ethical dimensions of mysticism, and sin and grace. This will be an important volume for students of ethics and medieval philosophy.

Neurosemantics - Neural Processes and the Construction of Linguistic Meaning (Paperback, Softcover reprint of the original 1st... Neurosemantics - Neural Processes and the Construction of Linguistic Meaning (Paperback, Softcover reprint of the original 1st ed. 2016)
Alessio Plebe, Vivian M. De La Cruz
R3,703 Discovery Miles 37 030 Ships in 10 - 15 working days

This book examines the concept of " Neurosemantics", a term currently used in two different senses: the informational meaning of the physical processes in the neural circuits, and semantics in its classical sense, as the meaning of language, explained in terms of neural processes. The book explores this second sense of neurosemantics, yet in doing so, it addresses much of the first meaning as well. Divided into two parts, the book starts with a description and analysis of the mathematics of the brain, including computational units, representational mechanisms and algorithmic principles. This first part pays special attention to the neural architecture which has been used in developing models of neurosemantics. The second part of the book presents a collection of models, and describes each model reproducing specific aspects of the semantics of language. Some of these models target one of the core problems of semantics, the reference of nouns, and in particular of nouns with a strong perceptual characterization. Others address the semantics of predicates, with a detailed analysis of colour attributes. While this book represents a radical shift from traditional semantics, it still pursues a line of continuity that is based on the idea that meaning can be captured, and explained, by a sort of computation.

Human Nature and the Limits of Darwinism (Paperback, Softcover reprint of the original 1st ed. 2016): Whitley R. P. Kaufman Human Nature and the Limits of Darwinism (Paperback, Softcover reprint of the original 1st ed. 2016)
Whitley R. P. Kaufman
R2,125 Discovery Miles 21 250 Ships in 10 - 15 working days

This book compares two competing theories of human nature: the more traditional theory espoused in different forms by centuries of western philosophy and the newer, Darwinian model. In the traditional view, the human being is a hybrid being, with a lower, animal nature and a higher, rational or "spiritual" component. The competing Darwinian account does away with the idea of a higher nature and attempts to provide a complete reduction of human nature to the evolutionary goals of survival and reproduction. Whitley Kaufman presents the case that the traditional conception, regardless of one's religious views or other beliefs, provides a superior account of human nature and culture. We are animals, but we are also rational animals. Kaufman explores the most fundamental philosophical questions as they relate to this debate over human nature-for example: Is free will an illusion? Is morality a product of evolution, with no objective basis? Is reason merely a tool for promoting reproductive success? Is art an adaptation for attracting mates? Is there any higher meaning or purpose to human life? Human Nature and the Limits of Darwinism aims to assess the competing views of human nature and present a clear account of the issues on this most pressing of questions. It engages in a close analysis of the numerous recent attempts to explain all human aims in terms of Darwinian processes and presents the arguments in support of the traditional conception of human nature.

UEber den Lehrer (German, Hardcover): Thomas Von Aquin UEber den Lehrer (German, Hardcover)
Thomas Von Aquin; Edited by G Jussen, G Krieger
R977 Discovery Miles 9 770 Ships in 12 - 17 working days
Wundt and the Philosophical Foundations of Psychology - A Reappraisal (Paperback, Softcover reprint of the original 1st ed.... Wundt and the Philosophical Foundations of Psychology - A Reappraisal (Paperback, Softcover reprint of the original 1st ed. 2016)
Saulo de Freitas Araujo
R3,020 Discovery Miles 30 200 Ships in 10 - 15 working days

This book reassesses the seminal work of Wilhelm Wundt by discussing the history and philosophy of psychology. It traces the pioneering theorist's intellectual development and the evolution of psychology throughout his career. The author draws on little-known sources to situate psychological concepts in Wundt's philosophical thought and address common myths and misconceptions relating to Wundt's ideas. The ideas presented in this book show why Wundt's work remains relevant in this era of ongoing mind/brain debate and interest continues in the links between psychology and philosophy. Featured topics include: Theoretical and philosophical foundations of Wundt's early work in scientific psychology. Wundt's conception of scientific philosophy in relation to his theory of knowledge. The epistemological dimensions of Wundt's final project in scientific psychology. Wundt and the Philosophical Foundations of Psychology is a valuable resource for researchers, professors, and graduate students in cognitive and related psychology and philosophy disciplines.

Rabbi Akiva's Philosophy of Love (Paperback, Softcover reprint of the original 1st ed. 2017): Naftali Rothenberg Rabbi Akiva's Philosophy of Love (Paperback, Softcover reprint of the original 1st ed. 2017)
Naftali Rothenberg
R3,579 Discovery Miles 35 790 Ships in 10 - 15 working days

This book explores the philosophy of love through the thought and life of Rabbi Akiva ben Joseph. Readers of the Talmud are introduced to Rabbi Akiva through the iconic story of his love for his wife Rachel. From this starting point, Naftali Rothenberg conducts a thorough examination of the harmonious approach to love in the obstacle-laden context of human reality. Discussing the deterioration of passion into simple lust, the ability to contend with suffering and death, and so forth, Rothenberg addresses the deepest and most pressing questions about human love. The readings and observations offered here allow readers to acquire the wisdom of love-not merely as an assemblage of theoretical arguments and abstract statements, but as an analysis of the internal contradictions and difficulties revealed in the context of attempts to realize and implement harmonious love.

Wanting and Intending - Elements of a Philosophy of Practical Mind (Paperback, Softcover reprint of the original 1st ed. 2016):... Wanting and Intending - Elements of a Philosophy of Practical Mind (Paperback, Softcover reprint of the original 1st ed. 2016)
Neil Roughley
R4,138 Discovery Miles 41 380 Ships in 10 - 15 working days

This book aims to answer two simple questions: what is it to want and what is it to intend? Because of the breadth of contexts in which the relevant phenomena are implicated and the wealth of views that have attempted to account for them, providing the answers is not quite so simple. Doing so requires an examination not only of the relevant philosophical theories and our everyday practices, but also of the rich empirical material that has been provided by work in social and developmental psychology. The investigation is carried out in two parts, dedicated to wanting and intending respectively. Wanting is analysed as optative attitudinising, a basic form of subjective standard-setting at the core of compound states such as 'longings', 'desires', 'projects' and 'whims'. The analysis is developed in the context of a discussion of Moore-paradoxicality and deepened through the examination of rival theories, which include functionalist and hedonistic conceptions as well as the guise-of-the-good view and the pure entailment approach, two views popular in moral psychology. In the second part of the study, a disjunctive genetic theory of intending is developed, according to which intentions are optative attitudes on which, in one way or another, the mark of deliberation has been conferred. It is this which explains intention's subjection to the requirements of practical rationality. Moreover, unlike wanting, intending turns out to be dependent on normative features of our life form, in particular on practices of holding responsible. The book will be of particular interest to philosophers and psychologists working on motivation, goals, desire, intention, deliberation, decision and practical rationality.

Subjectivity and Selfhood in Medieval and Early Modern Philosophy (Paperback, Softcover reprint of the original 1st ed. 2016):... Subjectivity and Selfhood in Medieval and Early Modern Philosophy (Paperback, Softcover reprint of the original 1st ed. 2016)
Jari Kaukua, Tomas Ekenberg
R3,542 Discovery Miles 35 420 Ships in 10 - 15 working days

This book is a collection of studies on topics related to subjectivity and selfhood in medieval and early modern philosophy. The individual contributions approach the theme from a number of angles varying from cognitive and moral psychology to metaphysics and epistemology. Instead of a complete overview on the historical period, the book provides detailed glimpses into some of the most important figures of the period, such as Augustine, Avicenna, Aquinas, Descartes, Spinoza, Leibniz and Hume. The questions addressed include the ethical problems of the location of one's true self and the proper distribution of labour between desire, passion and reason, and the psychological tasks of accounting for subjective experience and self-knowledge and determining different types of self-awareness.

Guides to the Eucharist in Medieval Egypt - Three Arabic Commentaries on the Coptic Liturgy (Hardcover): Arsenius Mikhail Guides to the Eucharist in Medieval Egypt - Three Arabic Commentaries on the Coptic Liturgy (Hardcover)
Arsenius Mikhail; Yuhanna ibn Sabba', Abu al-Barakat ibn Kabar, Gabriel V Of Alexandria
R2,434 Discovery Miles 24 340 Ships in 12 - 17 working days

The fourteenth and fifteenth centuries witnessed a rising interest in Arabic texts describing and explaining the rituals of the Coptic Church of Egypt. This book provides readers with an English translation of excerpts from three key texts on the Coptic liturgy by Abu al-Barakat ibn Kabar, Yuh.anna ibn Sabba', and Pope Gabriel V. With a scholarly introduction to the works, their authors, and the Coptic liturgy, as well as a detailed explanatory apparatus, this volume provides a useful and needed introduction to the worship tradition of Egypt's Coptic Christians. Presented for the first time in English, these texts provide valuable points of comparison to other liturgical commentaries produced elsewhere in the medieval Christian world.

Philosophizing Madness from Nietzsche to Derrida (Paperback, Softcover reprint of the original 1st ed. 2017): Angelos Evangelou Philosophizing Madness from Nietzsche to Derrida (Paperback, Softcover reprint of the original 1st ed. 2017)
Angelos Evangelou
R3,982 Discovery Miles 39 820 Ships in 10 - 15 working days

Drawing connections between madness, philosophy and autobiography, this book addresses the question of how Nietzsche's madness might have affected his later works. It also explores why continental philosophy after Nietzsche is so fascinated with madness, and how it (re)considers, (re)evaluates and (re)valorizes madness. To answer these questions, the book analyzes the work of three major figures in twentieth-century French philosophy who were significantly influenced by Nietzsche: Bataille, Foucault and Derrida, examining the ways in which their responses to Nietzsche's madness determine how they understand philosophy as well as philosophy's relation to madness. For these philosophers, posing the question about madness renders the philosophical subject vulnerable and implicates it in a state of responsibility towards that about which it asks. Out of this analysis of their engagement with the question of madness emerges a new conception of 'autobiographical philosophy', which entails the insertion of this vulnerable subject into the philosophical work, to which each of these philosophers adheres or resists in different ways.

Moral Dilemmas in Medieval Thought - From Gratian to Aquinas (Hardcover): M.V. Dougherty Moral Dilemmas in Medieval Thought - From Gratian to Aquinas (Hardcover)
M.V. Dougherty
R2,760 R2,467 Discovery Miles 24 670 Save R293 (11%) Ships in 12 - 17 working days

The history of moral dilemma theory often ignores the medieval period, overlooking the sophisticated theorizing by several thinkers who debated the existence of moral dilemmas from 1150 to 1450. In this book Michael V. Dougherty offers a rich and fascinating overview of the debates which were pursued by medieval philosophers, theologians and canon lawyers, illustrating his discussion with a diverse range of examples of the moral dilemmas which they considered. He shows that much of what seems particular to twentieth-century moral theory was well-known long ago - especially the view of some medieval thinkers that some forms of wrongdoing are inescapable, and their emphasis on the principle 'choose the lesser of two evils'. His book will be valuable not only to advanced students and specialists of medieval thought, but also to those interested in the history of ethics.

The Excellent Mind - Intellectual Virtues for Everyday Life (Paperback): Nathan L. King The Excellent Mind - Intellectual Virtues for Everyday Life (Paperback)
Nathan L. King
R802 Discovery Miles 8 020 Ships in 12 - 17 working days

Nathan L. King's The Excellent Mind considers the importance of the intellectual virtues: the character traits of excellent thinkers. He explains what it means to have an excellent mind: one that is curious, careful, self-reliant, humble, honest, persevering, courageous, open, firm, and wise. Drawing from recent literature in philosophy and psychology, he considers what these virtues are like in practice, why they are important, and how we grow in them. King also argues that despite their label, these virtues are not just for intellectuals: they are for everyone. He shows how intellectual virtues are critical to living everyday life, in areas as diverse as personal relationships, responsible citizenship, civil discourse, personal success, and education. Filled with vivid examples and relevant applications, The Excellent Mind will serve as an engaging introduction to the intellectual virtues for students and anyone interested in the topic.

Von der Wissenschaft des Nichtwissens (German, Hardcover): Nicolaus Von Cues Von der Wissenschaft des Nichtwissens (German, Hardcover)
Nicolaus Von Cues
R946 Discovery Miles 9 460 Ships in 10 - 15 working days
Maths Meets Myths: Quantitative Approaches to Ancient Narratives (Paperback, Softcover reprint of the original 1st ed. 2017):... Maths Meets Myths: Quantitative Approaches to Ancient Narratives (Paperback, Softcover reprint of the original 1st ed. 2017)
Ralph Kenna, Mairin Mac Carron, Padraig Mac Carron
R3,432 Discovery Miles 34 320 Ships in 10 - 15 working days

With an emphasis on exploring measurable aspects of ancient narratives, Maths Meets Myths sets out to investigate age-old material with new techniques. This book collects, for the first time, novel quantitative approaches to studying sources from the past, such as chronicles, epics, folktales, and myths. It contributes significantly to recent efforts in bringing together natural scientists and humanities scholars in investigations aimed at achieving greater understanding of our cultural inheritance. Accordingly, each contribution reports on a modern quantitative approach applicable to narrative sources from the past, or describes those which would be amenable to such treatment and why they are important. This volume is a unique state-of-the-art compendium on an emerging research field which also addresses anyone with interests in quantitative approaches to humanities.

An Essay on the Metaphysics of Descartes (Paperback): Marthinus Versfeld An Essay on the Metaphysics of Descartes (Paperback)
Marthinus Versfeld
R1,269 Discovery Miles 12 690 Ships in 12 - 17 working days

Originally published in 1940, this book provides a thorough discussion of Rene Descartes philosophy of metaphysics, examining the three major points of the mind and body, freedom of the will and religion and science. Specific chapters are devoted to the Cartesian theory and the Meditations, in particular the Sixth.

Boethius' Consolation of Philosophy as a Product of Late Antiquity (Hardcover, New): Antonio Donato Boethius' Consolation of Philosophy as a Product of Late Antiquity (Hardcover, New)
Antonio Donato
R4,320 Discovery Miles 43 200 Ships in 12 - 17 working days

In the last fifty years the field of Late Antiquity has advanced significantly. Today we have a picture of this period that is more precise and accurate than before. However, the study of one of the most significant texts of this age, Boethius' Consolation of Philosophy, has not benefited enough from these advances in scholarship. Antonio Donato aims to fill this gap by investigating how the study of the Consolation can profit from the knowledge of Boethius' cultural, political and social background that is available today. The book focuses on three topics: Boethius' social/political background, his notion of philosophy and its sources, and his understanding of the relation between Christianity and classical culture. These topics deal with issues that are of crucial importance for the exegesis of the Consolation. The study of Boethius' social/political background allows us to gain a better understanding of the identity of the character Boethius and to recognize his role in the Consolation. Examination of the possible sources of Boethius' notion of philosophy and of their influence on the Consolation offers valuable instruments to evaluate the role of the text's philosophical discussions and their relation to its literary features. Finally, the long-standing problem of the lack of overt Christian elements in the Consolation can be enlightened by considering how Boethius relies on a peculiar understanding of philosophy's goal and its relation to Christianity that was common among some of his predecessors and contemporaries.

Every Time I Find the Meaning of Life, They Change It - Wisdom of the Great Philosophers on How to Live (Paperback, Annotated... Every Time I Find the Meaning of Life, They Change It - Wisdom of the Great Philosophers on How to Live (Paperback, Annotated edition)
Daniel Klein
R424 R357 Discovery Miles 3 570 Save R67 (16%) Ships in 12 - 17 working days

A humorous and philosophical trip through life, from the New York Times-bestselling coauthor of Plato and a Platypus Walk into a Bar . . . Daniel Klein's fans have fallen in love with the warm, humorous, and thoughtful way he shows how philosophy resonates in everyday life. Readers of his popular books Plato and a Platypus Walk into a Bar . . . and Travels with Epicurus come for enlightenment and stay for the entertainment. As a young college student studying philosophy, Klein filled a notebook with short quotes from the world's greatest thinkers, hoping to find some guidance on how to live the best life he could. Now, from the vantage point of his eighth decade, Klein revisits the wisdom he relished in his youth with this collection of philosophical gems, adding new ones that strike a chord with him at the end of his life. From Epicurus to Emerson and Camus to the theologian Reinhold Niebuhr-whose words provided the title of this book-each pithy extract is annotated with Klein's inimitable charm and insights. In these pages, our favorite jokester-philosopher tackles life's biggest questions, leaving us chuckling and enlightened.

Die Staatsrechtslehre Des Francisco Suarez (German, Hardcover): Oliver Bach, Norbert Brieskorn, Gideon Stiening Die Staatsrechtslehre Des Francisco Suarez (German, Hardcover)
Oliver Bach, Norbert Brieskorn, Gideon Stiening
R3,848 Discovery Miles 38 480 Ships in 12 - 17 working days
UEber die Wissenschaften / De scientiis (German, Hardcover): Franz Schupp UEber die Wissenschaften / De scientiis (German, Hardcover)
Franz Schupp; Alfarabi
R1,761 Discovery Miles 17 610 Ships in 10 - 15 working days
AEusserungen Des Inneren - Beitrage Zur Problemgeschichte Des Ausdrucks (German, Hardcover): Laura E Herrera Castillo AEusserungen Des Inneren - Beitrage Zur Problemgeschichte Des Ausdrucks (German, Hardcover)
Laura E Herrera Castillo
R3,168 Discovery Miles 31 680 Ships in 12 - 17 working days
The Intellectual World of the Italian Renaissance - Language, Philosophy, and the Search for Meaning (Hardcover): Christopher... The Intellectual World of the Italian Renaissance - Language, Philosophy, and the Search for Meaning (Hardcover)
Christopher S. Celenza
R3,393 Discovery Miles 33 930 Ships in 12 - 17 working days

In this book, Christopher Celenza provides an intellectual history of the Italian Renaissance during the long fifteenth century, from c.1350-1525. His book fills a bibliographic gap between Petrarch and Machiavelli and offers clear case studies of contemporary luminaries, including Leonardo Bruni, Poggio Bracciolini, Lorenzo Valla, Marsilio Ficino, Angelo Poliziano, and Pietro Bembo. Integrating sources in Italian and Latin, Celenza focuses on the linked issues of language and philosophy. He also examines the conditions in which Renaissance intellectuals operated in an era before the invention of printing, analyzing reading strategies and showing how texts were consulted, and how new ideas were generated as a result of conversations, both oral and epistolary. The result is a volume that offers a new view on both the history of philosophy and Italian Renaissance intellectual life. It will serve as a key resource for students and scholars of early modern Italian humanism and culture.

Constituting Freedom - Machiavelli and Florence (Hardcover): Fabio Raimondi Constituting Freedom - Machiavelli and Florence (Hardcover)
Fabio Raimondi
R3,040 Discovery Miles 30 400 Ships in 10 - 15 working days

Constituting Freedom focuses on the question at the heart of Machiavelli's thinking, that is 'in what mode a free state, if there is one, can be maintained in corrupt cities; or, if there is not, in what mode to order it?' The book analyses the different solutions thought up by Machiavelli, starting from the hypothesis of the 'civil principality', the definition of the republican ' civil and free way of life' and the examination of the history of the Florentine institutions, to two short writings during the years 1520-1522, the Discursus florentinarum rerum and the Minuta di provisione per la riforma dello Stato di Firenze, in which Machiavelli explored publicly, for the first time, his projects to bring back the republican freedom in Florence after the fall of the first Republic of the City and the Medici's return. The book's main argument is that Machiavelli was always a committed republican, even when he worked for the Medici, and even though he believed that the city's constitution needed to change after the fall of Soderini. In the Discursus and in the Minuta Machiavelli proposed a constitution in which the 'humours' were forced to mix themselves with one another so as to be obliged to generate a new form of 'equality', which according to Machiavelli is the main characteristic of a free, just, and stable republic. The aim was not to obtain equilibrium among parts of the city leaving them unaltered, but to mix them. Only in this way could Florence return to being free.

The Presence of Duns Scotus in the Thought of Edith Stein - The question of individuality (Paperback, Softcover reprint of the... The Presence of Duns Scotus in the Thought of Edith Stein - The question of individuality (Paperback, Softcover reprint of the original 1st ed. 2015)
Francesco Alfieri
R1,597 Discovery Miles 15 970 Ships in 10 - 15 working days

This book examines the phenomenological anthropology of Edith Stein. It specifically focuses on the question which Stein addressed in her work Finite and Eternal Being: What is the foundational principle that makes the individual unique and unrepeatable within the human species? Traditional analyses of Edith Stein’s writings have tended to frame her views on this issue as being influenced by Aristotle and Thomas Aquinas, while neglecting her interest in the lesser-known figure of Duns Scotus. Yet, as this book shows, with regard to the question of individuality, Stein was critical of Aquinas’ approach, finding that of Duns Scotus to be more convincing. In order to get to the heart of Stein’s readings of Duns Scotus, this book looks at her published writings and her personal correspondence, in addition to conducting a meticulous analysis of the original codexes on which her sources were based. Written with diligence and flair, the book critically evaluates the authenticity of Stein’s sources and shows how the position of Scotus himself evolved. It highlights the originality of Stein’s contribution, which was to rediscover the relevance of Mediaeval scholastic thought and reinterpret it in the language of the Phenomenological school founded by Edmund Husserl.

Sourcebook for the History of the Philosophy of Mind - Philosophical Psychology from Plato to Kant (Paperback, Softcover... Sourcebook for the History of the Philosophy of Mind - Philosophical Psychology from Plato to Kant (Paperback, Softcover reprint of the original 1st ed. 2014)
Simo Knuuttila, Juha Sihvola
R7,561 Discovery Miles 75 610 Ships in 10 - 15 working days

Fresh translations of key texts, exhaustive coverage from Plato to Kant, and detailed commentary by expert scholars of philosophy add up to make this sourcebook the first and most comprehensive account of the history of the philosophy of mind. Published at a time when the philosophy of mind and philosophical psychology are high-profile domains in current research, the volume will inform our understanding of philosophical questions by shedding light on the origins of core conceptual assumptions often arrived at before the instauration of psychology as a recognized subject in its own right.   The chapters closely follow historical developments in our understanding of the mind, with sections dedicated to ancient, medieval Latin and Arabic, and early modern periods of development. The volume’s structural clarity enables readers to trace the entire progression of philosophical understanding on specific topics related to the mind, such as the nature of perception. Doing so reveals the fascinating contrasts between current and historical approaches. In addition to its all-inclusive source material, the volume provides subtle expert commentary that includes critical introductions to each thematic section as well as detailed engagement with the central texts. A voluminous bibliography includes hundreds of primary and secondary sources. The sheer scale of this new publication sheds light on the progression, and discontinuities, in our study of the philosophy of mind, and represents a major new sourcebook in a field of extreme importance to our understanding of humanity as a whole.​

Molecular Origins of Brain and Body Geometry - Plato's Concept of Reality is Reversed (Paperback, Softcover reprint of the... Molecular Origins of Brain and Body Geometry - Plato's Concept of Reality is Reversed (Paperback, Softcover reprint of the original 1st ed. 2014)
Antonio Lima-De-Faria
R3,981 Discovery Miles 39 810 Ships in 10 - 15 working days

New concepts arise in science when apparently unrelated fields of knowledge are put together in a coherent way. The recent results in molecular biology allow to explain the emergence of body patterns in animals that before could not be understood by zoologists. There are no ”fancy curiosities” in nature. Every pattern is a product of a molecular cascade originating in genes and a living organism arises from the collaboration of these genes with the outer physical environment. Tropical fishes are as startling in their colors and geometric circles as peacocks. Tortoises are covered with the most regular triangles, squares and concentric circles that can be green, brown or yellow. Parallel scarlet bands are placed side by side of black ones along the body of snakes. Zebras and giraffes have patterns which are lessons in geometry, with their transversal and longitudinal stripes, their circles and other geometric figures. Monkeys, like the mandrills, have a spectacularly colored face scarlet nose with blue parallel flanges and yellow beard. All this geometry turns out to be highly molecular. The genes are many and have been DNA sequenced. Besides they not only deal with the coloration of the body but with the development of the brain and the embryonic process. A precise scenario of molecular events unravels in the vertebrates. It may seem far-fetched, but the search for the origin of this geometry made it mandatory to study the evolution of matter and the origin of the brain. It turned out that matter from its onset is pervaded by geometry and that the brain is also a prisoner of this ordered construction. Moreover, the brain is capable of altering the body geometry and the geometry of the environment changes the brain. Nothing spectacular occurred when the brain arrived in evolution. Not only it came after the eye, which had already established itself long ago, but it had a modest origin. It started from sensory cells on the skin that later aggregated into clusters of neurons that formed ganglia. It also became evident that pigment cells, that decide the establishment of the body pattern, originate from the same cell population as neurons (the neural crest cells). This is a most revealing result because it throws light on the power that the brain has to rapidly redirect the coloration of the body and to change its pattern. Recent experiments demonstrate how the brain changes the body geometry at will and within seconds, an event that could be hardly conceived earlier. Moreover, this change is not accidental it is related to the surrounding environment and is also used as a mating strategy. Chameleons know how to do it as well as flat fishes and octopuses. No one would have dared to think that the brain had its own geometry. How could the external geometry of solids or other figures of our environment be apprehended by neurons if these had no architecture of their own? Astonishing was that the so called ”simple cells”, in the neurons of the primary visual cortex, responded to a bar of light with an axis of orientation that corresponded to the axis of the cell’s receptive field. We tend to consider our brain a reliable organ. But how reliable is it? From the beginning the brain is obliged to transform reality. Brain imagery involves: form, color, motion and sleep. Unintentionally these results led to unexpected philosophical implications. Plato’s pivotal concept that ”forms” exist independently of the material world is reversed. Atoms have been considered to be imaginary for 2,000 years but at present they can be photographed, one by one, with electron microscopes. The reason why geometry has led the way in this inquiry is due to the fact that where there is geometry there is utter simplicity coupled to rigorous order that underlies the phenomenon where it is recognized. Order allows variation but imposes at the same time a canalization that is patent in what we call evolution.

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