This is the story of a boy who had bad temper. One day his father gave him a bag full of nails and a hammer. He asked his son to drive a nail in his room's wall every time he lost his temper. The boy did the same. Soon he started realising that he was losing his temper too often. He started controlling his temper.
When he was able to control his temper, he approached his father and said "Father now I can control my temper". His father replied OK Son! now take out one nail every time you are able to control your temper. Boy did the same. Soon all nails were out. Boy again approached his father with the news. This time his father took hold of his hand and took him to his room.
The wall was full of small holes. Father said "look son, no matter how hard you try, The wall will never be the same again."
"We often make scare marks by our words and try to make for them afterwards. No matter how hard we try, scare marks will remain there."