I met a 95-year-old doctor, who moved somewhat reluctantly into assisted living. He asked me what I did. I told him I had sold off my business and retired from a job I had enjoyed for over 35 years. He disapproved. “I was working till last year,” he said. Then he asked me what I did. Apart from the garden, kitchen and my interest in food sciences, I wrote this column, I told him. “Ah, money, the nothingness of it all,” he exclaimed. The irony seemed stark to me.