Taoism (, ), or Daoism (), is a philosophical or religious tradition of Chinese origin which emphasises living in harmony with the Tao (Chinese: 道; pinyin: Dào; literally: 'the Way', also romanised as Dao). The Tao is a fundamental idea in most Chinese philosophical schools; in Taoism, however, it denotes the principle that is the source, pattern and substance of everything that exists. Taoism differs from Confucianism by not emphasising rigid rituals and social order, but is similar in the sense that it is a teaching about the various disciplines for achieving "perfection" by becoming one with the unplanned rhythms of the universe called "the way" or "dao". Taoist ethics vary depending on the particular school, but in general tend to emphasise wu wei (action without intention), "naturalness", simplicity, spontaneity, and the Three Treasures: 慈 "compassion", 儉 "frugality", and 不敢為天下先 "humility".