十年窗下

Explanation: Imperial era, studying people to get fame, died buried in books. Described as a decade shut himself away. 　　Source: Yuan Liu Qi, "Gui Qian" VII ancient that no one asked ten years under the window, shot to fame under the knowledge every day. " 　　Examples: Although it is no more than ~, stable situation became famous the world take notice. (Yuan Guan Hanqing "Peidu also with the" second off)