There is no way in which to understand the world without first detecting it through the radar-net of our senses.
The writer's only responsibility is to his art. He will be completely ruthless if he is a good one. He has a dream. Everything goes by the board: honor, pride, decency, security, happiness, all, to get the book written. If a writer has to rob his mother, he will not hesitate; the Ode on a Grecian Urn is worth any number of old ladies.
No one is without Christianity, if we agree on what we mean by that word. It is every individual's individual code of behavior by means of which he makes himself a better human being than his nature wants to be, if he followed his nature only. Whatever its symbol -- cross or crescent or whatever -- that symbol is man's reminder of his duty inside the human race.