The famous English sculptor Henry Moore was asked a fascinating question by literary critic Donald Hall.

"Now that you are 80, you must know the secret of life. What is it?"

Moore paused ever so slightly, with just enough time to smile before answering. "The secret of life," he mused, "is to have a task, something you do your entire life, something you bring everything to, every minute of the day for your whole life. And the most important thing is: It must be something you cannot possibly do."