问道于盲

Explanation: Ask the blind. What metaphor do not know who to ask, do not solve the problem. 　　Usage: Partial official; as predicate, attributive; containing derogatory, but also as a self-deprecating terms 　　Source: Han Yu Tang, "A Mr Chan book" the first step of seeking the art of speed, not its people, are based on more visits, the so-called by listening to the deaf, seeking the correct path in the blind. " 　　Examples: Than between north and south, pushing quite Cheng Youpeng day long, ~. ★ Qing Gu, "and his friends on the school books." Thesaurus:  Knock the ice to fire, seek a hare in a hen's nest, draw water with a bamboo basket; all in vain, Dao in the blind, Drilling the ice to fire, Making fire drill ice, Zuanhuodebing, Yuanshanqiuyu, Yuanmuxiyu Antonym Group:  very easily obtainable, acquire sth.easily, Hand to cite, be sure to succeed easily, as easy as taking sth. out of one's pocket, have full assurance to get go after an easy prey as one who catches a tuttle in a jar, go on [upon] the scamp