士别三日，刮目相待

Explanation: That others have progress, and when the light. 　　Usage: Complex sentence; as object clause; with compliment 　　Source: Jin Chenshou "Lu Meng Chuan Wu of the Three Kingdoms": "Sui Meng worship mother, friends and the other end" of the Southern Song Pei Song Note: "who do not three days, which is more Guamuxiangdai." 　　Story: Wu's Lu Meng Three Kingdoms era can be said that a learned person, Zhou Yu died, his successor, Soochow's captaincy. Shu Han Guan Yu defeated designed and sent to the Ministry of Pan Zhang Guan Yu killed shortly after to have died. Lu Meng is a proper job would not have been diligent, so there is no knowledge. Lu Su met him, I feel there is no desirable place, and later, Lu Su then met him and saw him, and once completely different, is so powerful, jump him to talk about military issues, seemed very knowledge, so that Lu Su is amazing. Laughed and joked on the bit: "Now, your knowledge so well, both heroic, but also as seeking, no longer under the Ammon of the Wu." Lu Meng replied: "People do not after three days, on the other eye look at it! "Lu Meng's case, the original is" who do not three days, Guamuxiangdai. "Later, people would use" who do three days ", that is, to praise left shortly after the rapid progress of the mean.