When he thought of the past, my grandfather would sometimes show us photographs of himself at school. They were brown and faded, and it was hard to believe that the blurred figure of the little boy in the short trousers and socks could ever have been Grandfather. Besides, he wore a cap---and the boys in the photographs wore caps pulled so far forward that half of their faces were obscured. When Grandfather asked us to pick him out from the group, we would surely point to the wrong boy.