A farmer went up the mountain to cut wood together. At first, the two men cut as much firewood, and gradually found that the blade was getting dull. Farmer A suggested sharpening the knife before cutting wood. Farmer B said, "I must collect a load of firewood before noon. I have no time to sharpen my knife. " So the two acted according to their own ideas. At noon, farmer A has twice as much firewood as farmer B.

This fable shows that if a worker wants to do a good job, he must first sharpen his tools. It takes more time to prepare and choose the right tools, which is very important to help us achieve our goals.