Eating as a simple means of ending hunger is one of the great liberties of being alone, like going to the movies by yourself in the afternoon or, back in those golden days of youth, having a cigarette in the bathtub. It is a pleasure to not have to take anyone else's tastes into account or explain why I like to drink my grapefruit juice out of the carton. Eating, after all, is a matter of taste, and taste cannot always be good taste. The very thought of maintaining high standards meal after meal is exhausting. It discounts all the peanut butter that is available in the world.