避其锐气，击其惰归

Explanation: The: His; elan: fierce momentum; idle: loose use of forces of good people, always avoid the enemy's momentum first came here, tired again when the enemy severely hit. 　　Usage: Complex sentence; as object clause; with compliment 　　Source: Qin Sun Tzu "Sun Zijun war": "Gushan use of troops who, to avoid its youthful, hit the idle return, the government gas are also." Thesaurus:  avoid the important and dwell on the trivial, Refuge It can be easily, stay clear of the enemy's main force and, Avoid the virtual strike, avoid Haymaker ebb, To avoid the strong attacking the weak, Increasingly easy to asylum, consider sth.as it stands