涓涓不壅，终为江河

Explanation: Obstruct: block. If you do not plug the small stream, eventually merging into large rivers. Analogy to the burgeoning problem of small or no heed or correct, it will lead to big problems. 　　Source: San Guowei Wang Su, "the Analects of Confucius View Week" trickling do not obstruct, the end for the rivers, endless, or into a snare. "