"What are you doing?"
"Can't you see? I am sawing down this tree."
"You look exhausted. How long have you been at it?"
"Over five hours. And I am beat. This is hard work."
"Well, why don't you take a break for a few minutes and sharpen the saw? I am sure it will go a lot faster."
"I don't have time to sharpen the saw. I am too busy sawing."
Stephen Covey, "The seven habits of highly effective people"