以管窥豹

Explanation: Bamboo look with a leopard, can only be seen reflected in its body. Analogy eyes narrow, shortsighted knowledge. 　　Source: Phrase from the Southern Song Liu Yiqing "Shi Founder" The Lang also a Limited Time seen by. " 　　Examples: As for Yang Xiu children, separated from their eyes nose, ~, but not enough to know this. ★ Xu Maoyong "tasteless"