'The reading of all good books is like a conversation with the finest minds of past centuries.' Descartes'It is not enough to have a good mind.The main thing is to use it well.'Descartes is often called the father of modern philosophy. He was certainly one of the most important figures in the emergence of modern philosophy and science and his work and ideas have resonated through the centuries. His best known statement - I think, therefore I am - has become part of modern-day culture and language. John Cottingham's short guide is the ideal introduction to one of the greatest minds of any age.