Mr. Qi Gong, a modern calligrapher, has a good knowledge of structure. In view of Zhao Meng's "pen is the best" theory, he wrote poetry in the opposite direction:
How difficult is it to write with a pen? Vertical and horizontal aggregation and dispersion are the most relevant.
As soon as I got Huang Jinlv from the evidence, I suddenly felt that there was a big gap.
The old gentleman who is proficient in the old school has successfully borrowed from western science. In addition to adding geometric languages such as vertical, horizontal, circular arc and ray to compare the structure, the "golden section" of 0.6 18 became his magic weapon to explain the way of writing words.