Daoism, one of the great classical Chinese philosophies along with Confucianism and Legalism, emphasizes living in harmony with nature (the Way). One of the most famous Daoist sayings is: humans follow the earth, the earth follows the heavens, the heavens follow dao (the way), and dao follows ziran: nature, what is so of itself. Daoism celebrates simplicity and spontaneity, while approaching social and artistic conventions with a healthy dose of skepticism.
There is also a mystical element to Daoism, as captured in notions such as returning to the root, the infinite, and the mysterious sameness. As in other traditions, the mystical experience is somewhat mysterious and paradoxical, hence the sayings “the way that can be articulated is not the ultimate way,” and “those who speak don’t know, and those who know, don’t speak.”
For a quick popular introduction, see https://en.wikipedia.org/wiki/Taoism; for a more philosophical overview see https://plato.stanford.edu/archives/spr2017/entries/daoism/.