"'A landmark new book... It tells a story you need to hear, of where we live now.' Bryan Appleyard, The Sunday Times 'A giant in his vital field shows convincingly that the degeneracy of the West springs from our failure to manage the binary division of our brains.' Book of the Year choice, David Cox, Evening Standard 'A scintillating intelligence is at work.' Economist 'This is a very remarkable book... I couldn't put it down.' Mary Midgley, The Guardian 'A beautifully written, erudite, fascinating, and adventurous book. It goes from the microstructure of the brain to great epochs of Western civilisation, confidently and readably.' A. C. Grayling, Literary Review"