“That is another chamber of my heart that shows no electrical activity - the chamber that used to flicker into life when I saw a film that moved me, or read a book that inspired me, or listened to music that made me want to cry. I closed that chamber myself, for all the usual reasons. And now I seem to have made a pact with some philistine devil: if I don't attempt to re-open it, I will be allowed just enough energy and optimism to get through a working day without wanting to hang myself.”