浅见寡闻

Explanation: Opinion: superficial view; few news: The rarely heard. Knowledge is not widely described, little is known. 　　Source: "Historical Records Wudi like" non-studious thoughtful, heart knowing Italian, solid news channel can not do anything too few humble opinion. " 　　Examples: This fact occurred in the past, little knowledge in my humble opinion, is totally unexpected. (Lu Xun, "sequel to the sequel canopy _set_ True Story of Ah Q causes")