What do you mean by "two paths" and "two lines" in calligraphy?

The so-called "two paths", that is, "quick entry path, quick success shortcut." The so-called "double success" means "fast theory and fast practice". Specifically, the "two paths" refers to the method of learning calligraphy efficiently, which is embodied in "quick entry" and "quick success", and "double success" is the concrete method of "quick entry" and "quick success", that is, "quick entry" and "quick success" are the goals, and "quick theory" and "quick practice" are the methods and measures. The two are mutually causal and complementary.

This is a new calligraphy education system and mode initiated by Mr. Cai.