The term Taoism Founder is associated with three crossword solutions: Laotse (6 letters), Laotzu (6 letters), and Laotze (6 letters). Laotse, also known as Laozi, was a Chinese philosopher and poet who is traditionally credited as the founder of Taoism. He is believed to have lived in the 6th century BCE and is the author of the Tao Te Ching, the main text of Taoism. Laotzu is an alternate spelling of Laotse, while Laotze is a variant spelling.