Please use all your strengths when encountering difficulties.

On Saturday morning, a little boy played in his toy sandbox. There are a lot of toys, like cars, vans, plastic buckets, and shiny plastic shovel. But when he built roads and tunnels on the soft sand, he found a large stone in the sand.

The little boy began to dig the sand around the stone and wanted to get it out of the sand. He was very small, but the stone was very big, but he used both hands and feet. Without too much effort, he got the stone to the side of the sandbox. However, at this time, he found that he could not throw the big stones up to the ocean and throw them out of the sandbox.

The little boy made up his mind, pushing it with his hand, using his shoulder blades, shaking his left and right, and attacking the stone again and again. But whenever he had just made some progress, the stone would slip off and fall back into the sandbox.

The little boy had to use his strength to come back again and push hard again. However, the stone still rolled down and finally wounded his fingers. The little boy was helpless and cried sadly.

The father of the little boy saw through the window of the living room what he was doing. He walked up to the little boy and said softly and firmly: "Dear, why don't you have all the power?"

The little boy was downcast and cried and said, "I have exhausted my strength. Dad, I have tried my best! I have exhausted all my strength!"

"No, son," the father corrected kindly. "You have not exhausted all your strength. You have not asked for my help."

The father bent down and picked up the stone to move it out of the sandbox.