富于春秋

Explanation: Refers to the young, young. 　　Source: "Cao Xiang-Guo Records family," the world tentative, Daohui Wang rich spring, the Senate called the elders to make all health, safety and _set_ the people to ask why. " 　　Examples: Empress to Emperor ~, is to "admonish song" more than three hundred chapters, and for "Imperial Patent" eighteen, the text does not contain more. ★ "History of the North Empress Queen Helian's pass on the Wei Taiwu" Thesaurus:  rich Spring and Autumn Annals