Written by the Chinese sage Lao Zi around 400 BC, Dao De Jing (Tao Te Ching) is the most important scripture in Chinese culture. All the major schools of thoughts and religions in China, such as Confucianism, Taoism and Legalism, can trace their head-streams to the classic. According to UNESCO, Dao De Jing is the most circulated book in human history next to the Bible. As such, it has produced a profound effect worldwide through the millenniums. The Renwen Society presents a lecture on the classic on March 12 by Prof. Alan Du, a renowned Dao De Jing scholar who recently published an English translation of the book.