“Brilliant...Timely and necessary.” —Financial Times “Especially timely as we struggle to make sense of how it is that individuals and communities persist in holding beliefs that have been thoroughly discredited.” —Darren Frey, Science If reason is what makes us human, why do we behave so irrationally? And if it is so useful, why didn’t it evolve in other animals? This groundbreaking account of the evolution of reason by two renowned cognitive scientists seeks to solve this double enigma. Reason, they argue, helps us justify our beliefs, convince others, and evaluate arguments. It makes it easier to cooperate and communicate and to live together in groups. Provocative, entertaining, and undeniably relevant, The Enigma of Reason will make many reasonable people rethink their beliefs. “Reasonable-seeming people are often totally irrational. Rarely has this insight seemed more relevant...Still, an essential puzzle remains: How did we come to be this way?...Cognitive scientists Hugo Mercier and Dan Sperber [argue that] reason developed not to enable us to solve abstract, logical problems...[but] to resolve the problems posed by living in collaborative groups.” —Elizabeth Kolbert, New Yorker “Turns reason’s weaknesses into strengths, arguing that its supposed flaws are actually design features that work remarkably well.” —Financial Times “The best thing I have read about human reasoning. It is extremely well written, interesting, and very enjoyable to read.” —Gilbert Harman, Princeton University

Is human reason a product of evolution, or does it have a divine origin? In this thought-provoking book, the author explores the competing theories of this fundamental question, drawing on the latest research in evolutionary biology, psychology, and theology. A must-read for anyone interested in the origin of human consciousness. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

The nature of human reason is one of the thorniest of mysteries in philosophy. The reason appears in many specific forms within general areas such as cognition, thinking, experiencing beauty, and moral judgment. These forms are “perfectly” known in philosophy, yet an unknown pattern has been noticed which shows us that they are all a variation of the same theme: truth is an identity relation between the “thought” and “reality”; justice is an identity relation between the given and the deserved; beauty is an identity relation as rhyme is an identity relation between the final sounds of words; rhythm is an identity relation between time intervals; symmetry is an identity relation between two halves; proportion is an identity relation between two ratios; anaphora is an identity relation between the initial words. Particular things are identities in themselves and universals are identities between particulars. One idea associates another idea identical to it; an analogy is an identity between relations; induction is an identification between the known and unknown instances; and all the logic rests on the law of identity. What is common for all of them is the nature of reason itself.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

The Arthur M. Sackler Colloquia of the National Academy of Sciences address scientific topics of broad and current interest, cutting across the boundaries of traditional disciplines. Each year, four or five such colloquia are scheduled, typically two days in length and international in scope. Colloquia are organized by a member of the Academy, often with the assistance of an organizing committee, and feature presentations by leading scientists in the field and discussions with a hundred or more researchers with an interest in the topic. Colloquia presentations are recorded and posted on the National Academy of Sciences Sackler colloquia website and published on CD-ROM. These Colloquia are made possible by a generous gift from Mrs. Jill Sackler, in memory of her husband, Arthur M. Sackler.