""... In my childhood my grandfather (my mother's father) gave me an ancient manuscript book; I drilled during three years using pictures of the book and at that time I did not become aware of the true value of that book. Then I happened to learn under the guidance of the famous master of the North Wang Zi Ping as well as over twenty other great masters. I drilled in various kinds of Martial Arts during more than twenty years. With certain experience behind me, I can say that the ancient manuscript preserved by my grandfather is priceless heritage of our National Martial Art."" Liu Jin Sheng. The Police Academy of Zhejiang province. 1-st of May of the 24-th year of the Chinese Republic (1935)