秤薪而爨

Explanation: Salary: Chai; cook: light a fire for cooking. Analogy only pay attention to little things, not from a broad perspective. 　　Source: "Huainanzi Thai training": "Cuan said the salary and, a few meters while cooking, can cure can cure a small but not large too. 　　Examples: Hoards gather Valley, too busy to date. True one is a few meters and cook, ~. (Ming Feng Meng "Jingshitongyan" Kango)