蚕头燕尾

Explanation: Described calligraphy started to write heavy, light pen Results diseases. 　　Source: Zhao Ji Song, "Vision and Huapu Yen Chen," but their consistent loyalty day, knowledge of high world, so the spirit of those found in the table on calligraphy, including Trinidad and the chief. ... ... After the popular school, is seeking the end of its shape to that of silkworm head swallowtail, only been obtained it. "