the knowledge and economy brings a lot of benefits to a coun

The knowledge and economy brings a lot of benefits to a country :
As we all know,China had been invaded by different countries in the past,the main reason was that China was so backward in both the science development and the economy that most of the countries in the world looked down upon China and its people.Nowadays,when the world is overwhelmed by the modern science,and therefore,the economic development is unexpectedly rapid,any country would like to take the development of the science and economy as their main task.From the basic education,they advocate the importance of the knowledge with the educational reforms.Knowledge as well as science are profitable,both of them can be the supporting force to the economy.