师直为壮

Explanation: Teacher: army; straight: While the reasons; Zhuang: Zhuang Sheng, strength. There are legitimate reasons to send troops, the army on the fierce, with combat effectiveness. Now refers to the army to fight for justice fight strong, invincible. 　　Source: "Twenty years of public Zuo Xi" straight division is strong, as the old song, a blessing in the long peace? " Thesaurus:  an army burning with righteous indignation is bound to win