Explanation: Ho Leung: Ho water bridge. Knowing that do not have their own entertainment situation. Source: "Zhuangzi Qiu water" Zhuangzi and Keiko on tour in Ho Leung. Chuang Tzu said, 'minnows trips calm. The fish is fun. 'Benefits Master said' I know that the fish is happy? 'Chuang Tzu said,' not my son, I do not know know that the fish is happy? '"