刺股悬梁

Explanation: Study hard to describe. 　　Usage: Joint type; as predicate, attributive, adverbial; describe the hard study hard 　　Source: Han Liu Xiang, "Qin Warring States policy": "Qin reading drowsiness, cited cone from the thorns of its shares." "Tai Ping Yu Lan" 363 argument "Han": "SUN Jing Wen Po word, eager to learn, Chen Xi endlessly, until fatigue and sleep sleep sleep in order to tether head, hanging beams. " Thesaurus:  Curiousness tireless, hang oneself from a beam nip, Night time candlelight, Daytime tillage night to chant