he seemed to be curiously unaware of a universe in which those things might not be givens, in which not everyone shared the same past and future. But this was a highly ungenerous way to think, and it was rare—most of the time, he admired Harold’s steadfast optimism, his inability or unwillingness to be cynical, to look for unhappiness or misery in every situation. He loved Harold’s innocence, which was made more remarkable considering what he taught and what he had lost.