闭关自守

Explanation: Close the barrier, and outsiders do not travel. Analogy follow conservative, unwilling to external things. 　　Usage: Joint type; as the predicate attribute; metaphor conservative behavior, do not accept the impact of external things 　　Source: Han Ban Gu "Han Wang Mang Biography": "closed ourselves up, and sat adjacent to rely on Wu to mint coins of copper, rape due to worry the public officials." 　　Examples: The rapid development of science and technology today, we can not ~, contacts with the outside world. 　　Riddle: Flash Thesaurus:  live in complete seclusion, Retreat has sweeping, Closed No