盘石之安

Explanation: Described as extremely stable and solid. 　　Usage: Partial official; as object; describe an extremely stable and solid 　　Source: Qin Xun Kuang "Xunzi rich": "in the name of any person, whether IDS are, for the anger are not, be content with the country rock, life on the flag-wing." 　　Examples: Ming Luo Guanzhong's "Romance of Three Kingdoms" 77 back: "A one meter, so the soldiers do not make Xishu Soochow, Jingzhou, such as ~." Thesaurus:  Monolith The security