All these words that I hope to write, I have written them already many times in my mind. I have had many beginnings, each as good or as bad as the other. Hurtling in the underground from station to station, mind the doors, missed it!, there is no substitute for wool: waiting for a bus in Piccadilly Circus: walking across the Waterloo Bridge: watching the bed of the Thames when the tide is out - choose one, choose a time, a place, any time or any place, and take off, as if this were interrupted conversation, as if you and I were earnest friends and there is no need for preliminary remark.