Ever since man appeared on the earth,knowledge will sprout in the human wisdom,from primitive barbarism of the ancient to highly civilized,every time the progress of the society.All without exception shows knowledge of the tremendous role.The progress of knowledge,promote the historical development,the promotion of human civilization.Knowledge is power.In ancient times,lightning storms,and other natural phenomena are regarded as God's behavior.During the drought,the people would kill pigs and sheep.To the altar,and ask God,obey monk called Phoenix - rain.In this view,these seem to be too foolish,however it is not knowledge but lead to the inevitable result.Now we have scientific knowledge,the artificial rainfall approach,even when the drought,crops can grow very well." Old days" also cannot card our necks.Man can conquer nature,is because people have the knowledge.At present,the world a popular saying:look at a country,a nation is prosperous,prosperous,see this country,the people and culture knowledge level.I think that this argument is not without reason.Even if a country is not rich enough,but as long as it has the wisdom of the people,have the importance of knowledge tradition,it can be asserted that:this country is promising.But if a country,a nation is very rich,but maintains a group of" who have neither learning nor skill",the inevitable result is sad.It will gradually decline.The history of the Tang Dynasty was formed" prosperity" prosperity.In addition to the emperor's enlightened,the main reason is that all walks of life to the full development of science and technology.A galaxy of talents in domestic,national strength,Megatron sihai.Thus,the country's prosperity,prosperity is inseparable from the knowledge.