Every once in a while, someone will ask me to look back on my career and identify the achievement in my life of which I am proudest. I respond by telling them the story of a great painter, who was once approached by an admirer of his art. “Which of your paintings do you consider your most beautiful?” the man asked. The painter looked up at the man, then turned his gaze toward a large blank canvas, resting on an easel in the corner of the room. “The one I will paint tomorrow,” he replied.