发明是需求之母。
Invention is the mother of necessity.
翻译:指出农业是国家的根本,农业稳定则国家安宁。
Collaboration between industry, government and society is essential for progress.
To be an artist you have to give up everything, including the desire to be a good artist.
蓬草长在麻地里,不用扶持也能挺立住;白沙混进了黑土里,就会变得和土一样黑。
如果不能满足农民的需求,最先进的技术也毫无价值。#