These words show us a very important truth, that is, to survive and develop in the fierce social competition, we must constantly improve our skills. To be self-reliant and self-reliant, one must have a wealth of knowledge. If a person has no knowledge, he will be like an empty pocket, with nothing, and he can't stand on his own feet.

French scientist romain rolland also said: "Wealth is unreliable. The rich today may be beggars tomorrow. Only your own knowledge and talents are the real capital. " China's ancient godson famous saying also said: "Others left a bucket of gold to future generations, and I left it to future generations only once."