Explain this whole thing:-
"​Oh, I hate the cheap severity of abstract ethics! My wife was very plain, never had my ruffs properly starched, and knew nothing about cookery. Why, there was a buck I had shot in Hogley Woods, a magnificent pricket, and do you know how she had it sent to table? However, it is no matter now, for it is all over, and I don't think it was very nice of her brothers to starve me to death, though I did kill her."

The ghost of Sir Simon confided in Virginia that he did not appreciate the extreme gravity of moral codes. He had killed his wife as she had been a rather ordinary person, never starched his collars well, and was a poor cook. She had made a mess of the fine buck that he had shot once in Hogley Woods. But, he did not want to reminisce any of that as it was all over and he had more than paid for the price of killing her: her brothers had starved him to his death.