Xuan Jie (16 13- 1695) is called Zixuan, and its name is Wei Lun No.1 in Weifen, also known as Banzhai. People from Houtang Town, Mianjiang Town, Guangchang County, Jiangxi Province. A famous military theorist, astronomer, philosopher and mathematician in the late Ming and early Qing Dynasties. Xuan Jie's greatest contribution is to push his painstaking military masterpieces Sun Tzu's Art of War, On War and A Brief Introduction to Sun Tzu's Art of War, scientific masterpieces Xuan Ji's Legacy (also known as Writing New Stories) and The Book of Human Nature. 20 13 is Xuan Jie's 400th birthday.