2. In the practice of calligraphy lines, the ink is thick and the pen is sluggish, the pen is slow and weak, and the pen is dynamic. But if the ink is too light, the lines will swell up, and if the pen is too fast, the lines will be smooth and light. Therefore, when you turn around freely, you must use zero in a suitable shade, penetrate nature, keep the pen flowing, be quick but not loving, be calm and decisive, and be neither slow nor interesting. Only by alternating operations can we easily form lines with rhythmic beauty.
3. Zhao Mengfu is the representative of comeliness, and Su Dongpo is the representative of beauty, which is more flexible than beauty, just like a mature woman of about twenty-five. A vigorous person, with strong pen power, thin lines and thick lines. The practice of calligraphy lines must start with small strokes and strictly follow the corresponding aesthetic needs.