疑事无功

Explanation: Lack of confidence in the work, there would be no effect. 　　Source: Han Qian, "Records of the Historian of Lord Shang" Chan martingale said, 'OK unnamed suspect, doubt things work. Ju Fu expert has Walker, the non-solid see the world; has to consider who alone know it, will see the Ao people. '" 　　Examples: Zhu Jiang said more than good! "Zhang Yue ~ Ang sword to strike, today's meeting, no two!" ★ Sima Guang Song, "Mirror Huaiyang Wang Gengshi first year."