The value of an artist is determined solely by whether it can be incorporated into a harmonious whole, which is often unexpected. He is capable of valuing what the average person values and undervaluing what the average person values. When valuing a thing, he knows persistence; When he downplays a thing, he knows how to get rid of it. Artistic ability is found not only in what is known, but especially in what is known. Su Dongpo's thesis, that is, like water in the valley, in what it has...