寸丝半粟

Explanation: Analogy tiny things. 　　Source: Qing Wu Jingzi "Scholars" can not pinch the forty-back was the son of a half-inch wire Su honor his father, his father fell to costly industry, it is not self than on others, and my heart Kuihen to the extreme! " 　　Examples: Son can not pinch too ~ honor his father, his father fell to costly industry, it is not self than on others, and my heart Kuihen to the extreme! (Qing Wu Jingzi "Scholars" forty-back)