Since the 17th century, Western society has had a turbulent relationship with Reason. Descartes set out to reorganize all his opinions in the light of Reason, allowing, as Pascal bitterly reproached him, nothing else. In the course of the centuries which followed, the relationship with Reason became the object of a vigorous, often passionate debate. David Hume declared Reason to be impotent; Immanuel Kant observed that men suffered from 'misology'...