Concentration

This is a look of concentration to the extreme. On this evening, Tommy spent over three hours trying to run a steel ball through a little plastic labyrinth. He kept failing and starting again until we turned off the light and physically removed the toy from him.
He tried again the following day, and the day after until he succeeded in conquoring the maze after many hours. I truly wish I had his powers of perseverance and ability to tune out all but the task at hand.