With reference to drug-induced visions and the perceptual capacities of bees, Carnie deconstructs the work of Descartes, Newton and Berkeley to produce a new persepective on the way our senses operate.'All credit to him for building the case for an unfashionable theory, and making the reader think - which is what philosophy is supposed to do' Independent on Sunday. 'I like a writer with a big idea. This lucidly eccentric book offers pregnant evocations of dozing on the beach, or walking through a forest, arguments with Newton or Descartes, and musings on LSD trips...Interesting if true.' Stephen Poole, Guardian