研京练都

Explanation: Evans refers to the careful and slow. 　　Source: Phrase from the Southern Liang Liu Xie, "Wen Xin Diao mental state," Zhang Heng Jing to ten years research, Zuo Si training are to a century, despite huge text, but also think of them also slow. "Zhang Heng words for" two Beijing-Fu ", a concept is a decade into, Zuo Si as the" three Du Fu, "the idea of ​​twelve years (" Jin Shu Zuo Si Chuan "for years") is into.