求道于盲

Explanation: Blind: Blind. To ask the way to the blind. Analogy to the ignorant people who ask. 　　Source: Han Yu Tang, "A Mr Chan book": "Speed ​​of the art of seeking the first step, not its people, are based on more visits, the so-called by listening to the deaf, seeking the correct path in the blind." Thesaurus:  Knock the ice to fire, seek a hare in a hen's nest, draw water with a bamboo basket; all in vain, ask the way from a blind person, 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