Gu (1613-1682), a famous thinker, historian and linguist, was also called the three great Confucianism in the late Ming and early Qing dynasties with Huang Zongxi and Wang Fuzhi. The real name is Ji Kun, renamed Jiang, and the word is loyal and clear; After Du Nan's defeat, he changed his name to Yanwu, whose name was Lin Ting. He is a Chinese, Han nationality, born in Kunshan (now Jiangsu), Suzhou and Nanzhili. In the Ming Dynasty, all the students were eager to learn the practical experience of their youth and joined the anti-Qing army in Kunshan. After the defeat, he traveled north and south, visited the Ming Tombs ten times, and died in Quwo at the age of five. He is knowledgeable, and has studied the national code system, anecdotes of counties and cities, astronomical phenomena, canals, military farmers, centuries-old history, phonology and exegesis. In his later years, he emphasized textual research, which opened the atmosphere of park learning in Qing Dynasty. His knowledge is based on erudition and self-shame, and he learns from time to time, and if he learns well, he becomes an official. Poetry is a masterpiece when feelings are hurt.

Encyclopedia, late Ming and early Qing dynasties.