韬光晦迹

Explanation: Tao Light: the hidden talent; dark track: do not let people know his tracks. Refers to the hidden talent, not so exposed. 　　Usage: Joint type; as predicate, attributive; refers to the hidden talent, not to exposed 　　Source: "Biographies": "interpretation of the same monk, Tao-ray dark trace, who exemplifies the knowledge, ranking Han Shan." Thesaurus:  hide one's capacities and bide one's time