Lao Zi (Lao Tzu). In some sources, his name is also referred to as Lao Tsu, Lao Tse, Laotze or Laozi. Lao means 'old' and Zi means 'teacher', 'wise' in Chinese. The author of the Tao Te Ching book is the wise Laozi. He is an important Chinese philosopher who is considered the founder of Taoism. Here we have an app about Lao Tzu, Tao, Taoism quotes about leadership, love, life and wisdom