积小成大

Explanation: Accumulation of small things can become a huge number. 　　Source: "Han Dong Chuan": "living together as more than a small plot caused huge. Songzhang Jun rooms" Yun Ji Qi signed "Ninety volumes:" To a small evil, such as a small plot to National Cheng Kung University; from the micro to the with, for evil, so evil, one by one and Jieyou disaster should be. "