So the earliest source is:. The whole sentence is: live up to your mission and watch the flowers bloom in front of the court; I have no intention of staying or staying, looking at the clouds in the sky. This sentence means that when people do things, they can be as ordinary as flowers and flowers, and they can be calm; Look at the position, change like a cloud, can also be unintentional.
Tian Xingjian, a gentleman strives for self-improvement;
The terrain is Kun, and the gentleman carries things with morality.
From the perspective of Zhouyi, they are dry hanging and Kun hanging ~
The others should be Zhouyi's, too, I'm not sure ~