闻一知二

Explanation: Heard a lot of thing can understand. Good analogy to describe. 　　Usage: -Linked; as predicate, attributive; with commendatory 　　Source: "The Analects of Confucius Gongye Chang", thanks to dare look back? Back Wen also to know 10, to know, thanks to news of a second. " Thesaurus:  a word to the wise is sufficient