Teaching! Teaching is one of the other ways that how to giving out the knowledge. When teaching others means I understood, also I increase myself. I got a story to tell. There have two persons. One person named AA needs a certain amount of the money from the richer. The other person named BB needs the skill to earn the money from the richer. After years later, AA spent all the money. BB earned a certain amount of the money and also teaches others how to achieve the goals.