多难兴邦

Explanation: State: National. Troubled countries, under certain conditions, can inspire the people work hard, overcome difficulties and make the country strong and prosperous. 　　Usage: The main predicate; as predicate; that trouble to make national unity 　　Source: Hengyu "Zuo Zhao Gong four years": "the difficulty of its neighbors, not fear also. Or solid the country is difficult, start their territory; or without hard mourning their country, missing the Shou-yu." 　　Examples: Now this situation, we have ways to deal with, and to meet the difficulties ,"~"。 ("_Select_ed Works of Zhou Enlai," scroll down)