深根固本

Explanation: With "deep roots solid analysis." 　　Source: "Three Kingdoms Wu Lu Mao Biography" As for the summer Ding Fei, nine interactive domain nirvana when the coupon rate to be deep roots, love of pity fee. "" Jinshu Wen Yuan Chuan Fu Tao "have gotten the warrant, rail of a degree of a pet section, no more than the right to grant, Wei less than militaristic, so Du Qimeng occasion, deep roots and reinforce, transfer of the BES." 　　Examples: Tianyuan is no Jide; depending on their appearance, life is not long. Also, all Fan weak, the order to the country, had no ~ of dollars. ★ Sima Guang Song, "Mirror" volume one hundred and seventy third