Laozi was a Chinese philosopher and author commonly understood to have lived in the 6th century BC, although the time of his life is much disputed, and he has become as much a legend as a historical figure. Traditionally credited as the author of The Book of Tao, also known as The Tao Te Ching and The Tao and Its Characteristics, he is regarded as the father of Taoism and one of the most universally influential figures in Chinese culture.