In my book Leadership Wisdom from the Monk Who Sold His Ferrari, in the chapter on personal effectiveness, I quote the great inventor, one of my favorite people of all time, Thomas Edison, who was asked the secret of his extraordinary success. He thought about the question and then he replied, “Ability to apply your physical and mental abilities to one problem incessantly without growing weary. You do something all day long, don’t you,” he asks.” “Everyone does. If you get up at 7:00 AM and go to bed at 11:00 PM, you’ve put in 16 good hours, and it’s certain that people and been doing something all that time. The only trouble,” he says, “is that they devote their time to a great many things, while Idevote mine to only one. If they took the time in question and applied it to only one object, they would succeed.