I do not know whether I am more surprised by the book itself or my reaction to reading it (Lewis Thompson's 'Fathomless Heart'). When I was in my school sixth form, aged from sixteen to eighteen, occasionally, about the middle of the day, I would be seized by a complete reluctance to stay at school. It had exhausted my patience. This was often triggered, I confess, by either a double period of physical geography or of economics (more usually the latter)! I would develop a nascent cold and feigning sickness go home, sit in bed, feeling luxuriously sorry for myself, and reading William Blake. Later that day (after the final school bell would have tolled), I achieved a miraculous recovery. I cannot claim to have understood what I was reading but I was captivated by it and a sense that it was striking something in the depths of me long before anything was apparent on the surface. I was doing, without knowing it, what T.S. Eliot commended, reading poetry for its sensin...