Why should calligraphy stick ancient posts?

Calligraphy should be attached to ancient posts, because in order to study calligraphy deeply, it must be traced back to ancient posts. If you just want to write better, do it. Sticking is the fundamental way to learn calligraphy. Throughout the ages, no calligrapher has succeeded without temporary study, and no one who writes well has not been posted. Only by imitating traditional things like Tang Kai, Venus, Han Li and Qin Zhuan can we gain something.