The book I am best known for, or only known for, is a novel I am prepared to repudiate: written a quarter of a century ago, a jeu d'esprit knocked off for money in three weeks, it became known as the raw material for a film which seemed to glorify sex and violence. The film made it easy for readers of the book to misunderstand what it was about, and the misunderstanding will pursue me till I die. I should not have written the book because of this danger of misinterpretation.
Senseless violence is a prerogative of youth, which has much energy but little talent for the constructive.
Delimitation is always difficult. The world is one, life is one. The sweetest and most heavenly of activities partake in some measure of violence - the act of love, for instance; music, for instance.