The Beautiful Room is Empty by Edmund White:
I was medically disqualified from the army. The idea that my place would be taken by someone else, perhaps even a gay man too nervous to admit to his “tendencies,” didn’t trouble me in the least. A belief in morality is based on a belief in the group. I distrusted everyone. Hawthorne’s dim view of human nature confirmed mine, although I did not believe in Original Sin, only sin, far too common to be original. Of course I pretended to entertain normal scruples; I didn’t want people to look down on me.