His boss gave him an axe and showed him the area where he was supposed to work. The first day, the woodcutter brought 18 trees.
"Congratulations," the boss said. "Go on that way!"
Very motivated by the boss' words, the woodcutter tried harder the next day, but he only could bring 15 trees. The third day he tried even harder, but he only could bring 10 trees. Day after day he was bringing less and less trees.
"I must be losing my strength", the woodcutter thought. He went to the boss and apologized, saying that he could not understand what was going on.
"When was the last time you sharpened your axe?" the boss asked.
"Sharpen? I had no time to sharpen my axe. I have been very busy trying to cut trees..."
To be truly productive we must constantly give attention to self-care and self-improvement.
Author: Stephen Covey, Seven Habits of Highly Effective People